17 Logic Riddles That Will Challenge Even the Smartest Minds

Think you're good at solving puzzles? These logic riddles will stretch your reasoning skills and make you think twice before answering. See how many you can get right!

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Logic Riddles 🧩

A man pushes his car to a hotel and tells the owner he’s bankrupt. Why?

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Answer

He’s playing Monopoly.

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A farmer has 17 sheep. All but 9 run away. How many does he have left?

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Answer

9.

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What letter comes next in this sequence: O, T, T, F, F, S, S, E, N, …?

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Answer

T. They are the first letters of One, Two, Three, Four, Five, Six, Seven, Eight, Nine, so Ten comes next.

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You’re in a room with three light switches and one bulb in a closed room. You can only enter the room once. How do you figure out which switch controls the bulb?

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Answer

Turn on the first switch for a while, then turn it off and turn on the second. Enter the room. If the bulb is on, it’s the second. If it’s warm, it’s the first. If it’s off and cold, it’s the third.

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Two fathers and two sons go fishing. They catch three fish. Each gets one. How is this possible?

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Answer

They are grandfather, father, and son, three people.

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Which weighs more: a pound of feathers or a pound of bricks?

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Answer

Neither, they both weigh one pound.

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You see a room with no windows, three people are inside, but only two walk out. Where’s the third?

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Answer

The third person was carried out.

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A man stands on one side of a river, his dog on the other. He calls his dog, who immediately crosses the river without getting wet or using a bridge. How?

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Answer

The river was frozen.

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I have two coins that add up to 30 cents. One of them is not a nickel. What are the coins?

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Answer

A quarter and a nickel. One of them isn't a nickel, but the other is.

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How can you drop a raw egg onto a concrete floor without cracking it?

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Answer

Concrete is very hard to crack, so the egg lands safely. It is the egg that breaks.

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How can you divide 10 apples among 10 people so that one apple remains in the basket?

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Answer

Give 9 people one apple each, and give the 10th person the basket with the last apple in it.

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If three people each take half a cake, how can there still be half left?

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Answer

They’re all taking the same half, splitting it between them.

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You see a dead man in a locked room with 53 bicycles. What happened?

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Answer

He was cheating at cards, 'bicycles' refers to Bicycle playing cards.

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You have a 5-liter jug and a 3-liter jug. How can you measure exactly 4 liters?

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Answer

Fill the 5L jug, pour into 3L (leaving 2L). Empty 3L. Pour 2L into it. Fill 5L again, top off 3L (which takes 1 more liter), leaving exactly 4L in the 5L jug.

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You’re running a race. You pass the person in second place. What place are you in?

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Answer

Second.

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A man builds a square house with all sides facing south. A bear walks by. What color is the bear?

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Answer

White, it’s a polar bear. The house must be at the North Pole.

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A plane crashes on the border of the U.S. and Canada. Where do they bury the survivors?

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Answer

You don’t bury survivors.

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