Logic riddles - the best selection for children and adults: 120 riddles

In this article we have collected the most interesting logic problems. They will appeal to both adults and children of all ages. Here you will find logical tasks for ingenuity, mathematical ones, as well as complex logic problems. For verification, we have prepared answers for each task.

These entertaining logic puzzles will not only help develop your child’s creative thinking and logic, but will also be an excellent helper in spending fun family leisure time. Give your brain a boost, good luck!

Logic riddles - the best selection for children and adults

Logic riddles
Logic riddles for children and adults:

What muscle is the strongest in the human body? (The answer is the gastrocnemius and masseter muscles.)
What do they always talk about in the future tense? (The answer is about tomorrow.)
What word is always spelled incorrectly? (The answer is the word “wrong.” It’s always spelled that way—“wrong.”)
How many months in a year have 28 days? (The answer is all months.)
What can you see with your eyes closed? (The answer is dreams.)
A river that “fits” in your mouth? (The answer is gums.)
How can you bow your head without lowering it down? (The answer is by case.)
It can be light or heavy, but weighs nothing. It can be fast and slow, but does not walk, does not run, does not fly. What is this? (The answer is music.)
The more there are, the less weight. What is this? (The answer is holes.)
A wooden river, a wooden boat, and wooden smoke flowing over the boat. What is this? (The answer is a plane.)
The grandmother was carrying a hundred eggs to the market, and the bottom fell, how many eggs were left in the basket. (Answer: not a single one, because the bottom fell out.)
Moscow - 100, Yaroslavl - 1000, Arkhangelsk - 500. What are we talking about? (The answer is rubles, images on banknotes.)
On a ship, two sailors, one looks west and the other east, but they see each other how it happened. (Answer: they look at each other.)
Ducks were flying, one in front and two behind, one behind and two in front, one between two. How many were there in total? (The answer is three.)
How much fruit can you eat on an empty stomach? (The answer is one fruit, since the next ones will no longer be on an empty stomach.)
In one family, two sisters had one brother each. How many children are there in the family? (The answer is only 3 children, two sisters and a brother.)
How to put a pencil in a room so that no one can step over or jump over it? (The answer is to put a pencil near the wall.)
Changes throughout the year, but may be fixed. (The answer is date.)
What can I do that you will never be able to repeat in your life? (The answer is to crawl between your legs.)
What breaks but never falls? What falls but never breaks. (The answer is heart and blood pressure.)

Logic riddles - interesting

Logic riddles
Interesting logic riddles:

A conjunction, a number, then a preposition - that’s the whole riddle. And in order for you to find the answer, you need to remember the rivers. (The answer is the source.)
There are 100 sheets of paper on the table. For every 10 seconds you can count 10 sheets. How many seconds will it take to count 80 sheets? (The answer is 80 seconds.)
Residents of medieval Europe sometimes tied wooden chocks to their soles. For what purpose did they do this? (The answer is to protect against dirt, since there was no sewage system and the slop was poured directly onto the street.)
A man bought fruits for 10 rubles apiece, but sold them for 5 rubles apiece. After some time, he became a millionaire. How did he do it? (Answer: he was a billionaire.)
He may not have children, but he is still a dad. How is this possible? (The answer is the Pope.)
Is it possible to catch water using a net? (The answer is yes, if the water is frozen.)
What gets bigger if you turn it upside down? (The answer is number 6.)
What can you take in your left hand, but not in your right? (The answer is the elbow of the right hand.)
Three Sundays in the month fall on even numbers. What day of the week was the seventh of this month? (Answer: Friday. Sundays will fall on the numbers: 2, 9, 16, 23, 30.)
The jar is on the table. It stands so that one half of it is in the air, and the other is on the table. What is in the jar if it falls in half an hour? And why? (The answer is ice. It will melt and the jar will fall.)
Where do people pay for what is taken from them? (The answer is a hairdresser.)
Shoeless, but wearing boots. Walks on the ground, but upside down. (The answer is a nail in the boot.)
What little horse needs to be placed between two pronouns to make the name of a country? (The answer is ponies, Japan.)
Where on Earth does the south wind always blow? (The answer is at the North Pole.)
How many different digits must be used to write the number 100? (The answer is two, zero and one.)
The night watchman died during the day. Will they give him a pension? (The answer is that a dead person is not given a pension.)
Which island calls itself a piece of underwear? (The answer is Jamaica, I am a T-shirt.)
The person is completely healthy, not dead, not disabled, but they carry him out of the hospital in their arms. (The answer is a newborn.)
Which tap can you not wash your hands from? (The answer is from construction.)
What kind of person can hold an elephant? (Answer: chess player.)

Puzzles for adults in pictures

How many animals could you see in the photo? (Total 10).

The dial disk is divided into equal parts. Within each part, the sum of the numbers when added should give the same answer.

How many human faces can be identified in the photo? (Total 4)

Using all the points, lay out a broken line, which will consist of 4 identical segments.

Four question task:

Select 4 identical parts using only 3 lines.
Select 6 identical parts using only 3 lines.
Select 3 parts using only 3 lines.
Select 4 parts as desired using just 1 line.

Choose from two pairs of watches those whose image is real. How did you determine this? (The picture with a real clock has a shorter second hand and does not reach the numbers when moving).

Using just three movements, divide the wheel of cheese into equal 8 pieces.

Find the correspondence between the key and the wells in the figure.

Imagine that you are a logistician for the police. Distribute patrols at road intersections so that each of them controls an equal number of roads.

You work as a designer. You need to get an equal number of parts from two ovals to make a circle without a hole in the center.

Logic riddles - difficult

Logic riddles
Complex logic riddles:

There lived a husband and wife. The husband had his own room in the house, which he forbade his wife to enter. And so the husband went on a business trip, and the wife decided to come into this room. She took the key, opened it, and turned on the light. The wife walked around the room, then saw a book on the table. She opened it and heard someone opening the door. It was my husband who came. He took the key, opened the room and realized that someone was in it. How did the husband guess? (Answer - the husband touched the light bulb, it was hot.)
Name at least three animals that Moses took into his ark? (Answer: Prophet Moses did not take animals into the ark; righteous Noah did.)
Crossroads, traffic lights. KAMAZ, a cart and a motorcyclist stand and wait for the green light. The yellow light came on and the KAMAZ drove off. The horse got scared and bit the motorcyclist's ear. Like a traffic accident, but who broke the rules? (Answer: a motorcyclist, he was not wearing a helmet.)
You are standing in front of three switches. Behind an opaque wall are three light bulbs that are turned off. You need to manipulate the switches, go into the room and determine which light bulb each switch belongs to. (Answer - first you need to turn on two switches. After some time, turn one of them off. Enter the room. One light bulb will be hot from the switch on, the second will be warm from the switch off, the third will be cold from the untouched switch.)
How to fill a barrel exactly one half without using measuring instruments? (The answer is to tilt the barrel and pour until it is full in a horizontal position, so that the beginning of the bottom is visible, and does not touch the edge.)
The fairy-tale gnome needs a new candle every night, which he uses to light himself on the road, walking around the city. He can make 1 new candle from 5 candle stubs. If he has 25 candles, how many nights will his supply of new candles last? (The answer is for 6 nights. He can make 5 new candles from 25 cinders, and when they burn out, he can make the sixth of those 5 cinders that remain from them.)
One day, an antique money collector saw a coin in an antique store with a date on it: 175 BC. This Roman coin was not very expensive. But the collector didn't buy it. Why? (The answer is that the collector realized that he had a fake in his hands, since the master who made the coin did not know that he lived “before our era.”)
There lived a rich gentleman. One morning he had to leave on a trip. But before he left, the watchman ran up to him and started shouting that the master should not go anywhere, because he dreamed that the master would have an accident. But the master took him and fired him. For what? (Answer: the watchman was sleeping at work.)
3 turtles are crawling. The 1st turtle says - two turtles are crawling after me. The 2nd turtle says - one turtle is crawling behind me and one turtle is crawling in front of me. And the 3rd turtle - two turtles are crawling in front of me and one turtle is crawling behind me. How can this be? (Answer: turtles crawl around.)
One morning, a man notices that one of the tires of his car is completely out of air. Still, he gets into the car and drives 150 km to his client. After the visit he returns back. Although he did not inflate the tire, he was able to drive his car without any problems. Why could he drive a car? (Answer: the flat tire was on the spare wheel.)
There is a prison, next to a hospital. There are rails around them, and on the rails a train moves around at high speed. One boy needs to go to his grandfather in prison, and one girl needs to go to her grandmother in the hospital. How can they do this if the train doesn't stop? (Answer - the boy needs to throw the girl under the train, then he will go to prison, and the girl will be taken to the hospital.)
The school director has a brother, Nikolai. But Nikolai has no brothers. Could this be possible? (The answer is yes. The school director may be a woman.)
Two friends were counting passers-by. One sat still and counted all the passers-by. And the second one walked back and forth and counted those who were coming towards him. Who counted more? (The answer is the same. The second one goes in one direction, counts some, and counts others in the other.)
My life can be measured in hours. I serve when I shrink. When I'm thin, I'm fast. When I'm fat, I'm slow. The wind is my enemy. Who am I? (The answer is a candle.)
How much soil does a hole with a diameter of 3 meters and a depth of 3 meters contain? (The answer is not at all, the pits are empty.)
There were three cucumbers and four apples on the table. The child took one apple from the table. How much fruit is left on the table? (The answer is 3 fruits, and cucumbers are vegetables.)
Whom a mere mortal sees every day, a king - very rarely, and God - never. (The answer is their own kind.)
A man jumped out of a plane without a parachute. He landed on solid ground but remained unharmed. Why? (Answer - the plane was on the ground.)
It is no more deep than the height of a glass, no larger than the size of human hands, but no matter how much water is poured into it, it still will not fill. (The answer is a sink. )
At what time does the Moon weigh more? (The answer is when it is full.)

Tests puzzle games for the brain of adults. Tests level Q

You can test your logic using puzzle tests; we offer 10 tests to check your Q level.

Option 1

Testing thinking, determining the level of ability to separate concepts. Only 3 minutes are allotted for the solution, during which you need to have time to give the correct answer. Each question has 4 options, united by generic concept. Find the exception.

Option 2

Most people equate intelligence with intelligence. Psychology has its own opinion on this matter, noting that intelligence is something more than the mind. Thanks to intelligence, we think logically, have the ability to assess a situation, make the right decision, adapt and not get lost in life. Logical thinking and intuition, the right and left hand of the intellect. This type of test will help test your thinking and work on its development.

Option 3

Thanks to this type of puzzle test, you can determine how developed your logic is. If you didn’t succeed, don’t be upset; repetition is the mother of learning.

Option 4

An impeccable puzzle test to determine the Q level. Develops memory and vocabulary.

Option 5

This puzzle test will tell you about all your abilities, including logical thinking.

Option 6

We recommend that you take this puzzle test. He will teach you to separate the concepts of “main/secondary, abstract/concrete,” which is very important not only for the development of logic, but also for life.

Option 7

An excellent puzzle test for the development of technical abilities with 70 tasks in pictures. You will be given 25 minutes to decide.

Option 8

An interesting puzzle test for training logical thinking. You need to determine what connects these pairs of words in just three minutes.

Option 9

At a fast pace, you need to choose the correct version of this puzzle test. Presented tasks with a mathematical bias.

Option 10

We strongly recommend solving the test puzzle with a number series. This is a great opportunity to test your wits and ingenuity.

Logic riddles - short

Short logic riddles
Short logic riddles:

More than an hour, less than a minute. (The answer is the second, the hand of some watch models.)
Why is the stop valve on trains red and on airplanes blue? (Answer: airplanes don't have a stop valve." In fact, airplanes have a stop valve in the cockpit.)
The boy paid 11 rubles for a bottle with a cork. A bottle costs 10 rubles more than a cork. How much does a cork cost? (Answer: 50 kopecks.)
In which city is a man's name and cardinal direction hidden? (Answer: Vladivostok.)
Why do they often walk, but rarely drive? (The answer is by stairs.)
It goes uphill, then downhill, but stays in place. (The answer is the road.)
Which word has 5 “e”s and no other vowels? (The answer is a migrant.)
What table has no legs? (The answer is dietary.)
How can a person not sleep for 8 days? (The answer is to sleep at night.)
What animal do people walk on and cars drive over? (The answer is zebra.)
Which word uses “no” 100 times? (Answer: groans.)
What's an elephant without a nose? (The answer is chess.)
Which route has no one ever walked or ridden before? (The answer is the milky way.)
What kind of stopper can't stop any bottle? (The answer is road.)
In what word is the drink and natural phenomenon “hidden”? (The answer is grapes.)
You can tie it, but you can’t untie it. (The answer is conversation.)
To what mere mortal does even the president take off his hat? (The answer is a hairdresser.)
They are metallic and liquid. What are we talking about? (The answer is nails.)
How to write "duck" in 2 cells? (Answer: In the 1st - the letter “y”, in the 2nd - a dot.)
Guess the riddle - who has the heel behind the nose? (The answer is shoes.)

Logic riddles - funny

Funny logic riddles
Funny logic riddles:

Small, gray, looks like an elephant. Who is this? (The answer is a baby elephant.)
The pear is hanging - you can’t eat it. Not a light bulb. (The answer is someone else's pear.)
What is the fear of Santa Claus coming called? (The answer is claustrophobia.)
Not ice, but melting, not a boat, but floating away. (The answer is salary.)
What's the difference between a priest and a Volga? (Answer: priest is father, and Volga is mother.)
Before calling a woman a bunny, what should a man check? (The answer is to make sure he has enough "cabbage.")
When does a person have as many eyes as there are days in a year? (The answer is January second.)
One magician said he could place a bottle in the center of a room and crawl into it. Like this? (The answer is to her room.)
What is the world's kindest ghost with a motor? (Answer: Cossack.)
What should you put on the pie before eating it? (The answer is teeth.)
If you don’t lick it, it won’t get up, if it doesn’t get up, it won’t fit in! (The answer is threading a needle.)
The woman is standing on the floor, her hole slightly open. (The answer is a stove.)
Crawling downhill, running uphill. (The answer is snot.)
What is the name of the shadow from the horseradish plant? (The answer is crap.)
Grain that has passed through fire, water and copper pipes. (The answer is moonshine.)
How to catch a tiger in a cage? (Answer: there is no tiger in a cage, there is a tiger in stripes.)
What is the difference between a worker and an engineer? (The answer is that a worker washes his hands before “going” to the toilet, and an engineer washes his hands after.)
How many shoes does a woman need to be “completely happy”? (The answer is one more pair than she already has.)
The boy Kolya’s mother works as a cook at school, and his father works at a meat processing plant. Question, what weight does the boy Kolya weigh? (The answer is redundant.)
What do milk and a hedgehog have in common? (The answer is the ability to fold.)

Logic riddles - with a trick

Logic riddles with a trick
Logic riddles with a trick:

Two people approach the river. There is a boat at the shore that can only support one. Both people crossed to the opposite bank. How? (Answer - they were on different banks.)
Jackdaws flew and sat on sticks. If they sit down one at a time, there’s an extra jackdaw; if they sit down in twos, there’s an extra stick. How many sticks were there and how many jackdaws were there? (The answer is three sticks and four jackdaws.)
Once upon a time there lived an orphan girl in a thicket; she had only two kittens, two puppies, three parrots, a turtle and a hamster. She decided to go to the living creatures for food. She walks through the forest, through the field, through the forest, through the field. She came to the store, but there was no food there. She went back home. And the girl fell into the hole. If she gets out, dad will die. If she stays there, mom will die. You can't dig a tunnel. What should she do? (The answer is to get out calmly, she is an orphan.)
A child was born into a black family in the Congo, all white, even his teeth were snow-white. What's wrong here? (The answer is that children are born without teeth.)
On the same day, 2 boys were born in the same maternity hospital. Their parents moved into the same house. The boys lived on the same landing, went to the same school, to the same class. But they never saw each other. How can it be? (Answer: they were born blind.)
The boat rocks on the water. A ladder was thrown from its side. Before high tide, the water covered only the bottom step. How long will it take for the water to cover the 3rd step from the bottom if during high tide the water rises at 20 cm per hour and the distance between the steps is 30 cm? (The answer is never, since the boat rises with the water.)
How many flowers do I have if all but two of them are roses, all but two are tulips, and all but two are daisies? (The answer is three flowers: a rose, a tulip and a daisy.)
A cowboy, a gentleman and a yogi are sitting at the table. How many feet are there on the floor? (The answer is 1 leg. A cowboy puts his legs on the table, a gentleman crosses his legs, and a yogi meditates)
Guests have come to your place, and in the refrigerator there is only a bottle of lemonade, a bag of pineapple juice and a bottle of mineral water. What will you open first? (The answer is a refrigerator.)
George Washington, Sherlock Holmes, William Shakespeare, Ludwig Van Beethoven, Napoleon Bonaparte, Nero - who is the “odd one” on this list? (The answer is Sherlock Holmes, he is a fictional character.)
Which bird's feathers need to be plucked to create morning, afternoon, evening and night at once? (Answer: from a duck, a day.)
A man walked into a bar, approached the bartender and asked for a glass of water. Instead, the bartender pointed a gun at him. The man said “thank you” and left. Why? (Answer: the man had severe hiccups, and the bartender decided to help him by scaring him.)
The man walked into a dark room, touched something, the glass broke, and Lucy died. What happened? (Answer: Lucy was a fish.)
Lera and Katya decided to play. One girl played with a doll, and the other with a teddy bear. Lera did not play with the doll. What did each girl play with? (Answer: Lera played with a teddy bear, and Katya played with a doll.)
All people want to have a lot of this vegetable, but you can’t buy it anywhere. What kind of vegetable is this? (The answer is cabbage-money.)
There was a stone on the seashore. An 8 letter word was written on the stone. When the rich read this word, they cried, the poor rejoiced, and the lovers parted. What was that word? (The answer is temporary.)
There is a chest at the bottom of the sea. It has everything, except one thing. What's missing from it? (The answer is voids.)
You dropped a ring in your coffee. Is it possible to get it out without getting your hands wet if you have nothing and you can’t spill the coffee? (The answer is yes, if the coffee beans are whole.)
He sits on his butt and looks at his ass. What is the person's profession? (The answer is a coachman or coachman.)
It was winter. Brother Ivanushka lost his sister Alyonushka. He went through the forest and fields to look for her, and saw a large river in front of him. How can he get across the river? (The answer is because of the ice, it was winter.)