Logic Puzzles
5 pirates of different ages have a treasure of 100 gold coins. On their ship, they decide...
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5 pirates of different ages have a treasure of 100 gold coins. On their ship, they decide...
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You have a basket containing ten apples. You have ten friends, who each desire an apple. You...
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You have three bags, each containing two marbles. Bag A contains two white marbles, Bag B contains...
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Cannibals ambush a safari in the jungle and capture three men. The cannibals give the men a...
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How many steps are required to break an m × n sized bar of chocolate into 1 × 1...
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A man is stranded on an island covered in forest. One day, when the wind is blowing from...
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You are at an unmarked intersection ... one way is the City of Lies and another way is the...
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You work at a fruit factory. There are 3 crates in front of you. One crate contains only...
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A solid, four-inch cube of wood is coated with blue paint on all six sides. Then the cube...
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Here is an ordinary cross. You are allowed to make two straight cuts across it. How do you...
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A man is caught on the King's property. He is brought before the King to be punished....
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A man works on the 10th floor and always takes the elevator down to ground level at the end...
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A Man carries his son into the hospital because his son has a nail in his foot. The Surgeon...
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A farmer wants to cross a river and take with him a wolf, a goat, and a cabbage. There...
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Four adventurers (Alex, Brook, Chris and Dusty) need to cross a river in a small canoe. The...
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Four people are traveling to different places on different types of transport. Their names...
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I have three special four-sided dice. They have one letter on each side. When I roll...
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There are five gears connected in a row, the first one is connected to the second one, the...
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There are five gears connected in a row, the first one is connected to the second one, the..
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A boy and a girl are talking. • "I am a boy" said the child with black hair. •...
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Old Farmer Palmer has a herd of cows, but he always seems to forget how many animals there...
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There are three people (Alex, Brook and Cody), one of whom is a knight, one a knave, and one...
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There are three people (Alex, Brook and Cody), one of whom is a knight, one a knave, and one...
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Alex, Brook, Cody, Dusty, and Erin recently found out that all of their birthdays were on the...
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Years ago, to puzzle his friends, a scientist gave one of four containers containing blue and/or...
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You are about to leave for holiday, but you forgot socks! You race back to your room, but...
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A scientist gathered four math students. They were then lined up so that each one could see...
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Two fathers took their sons fishing. Each man and son caught one fish, but when they returned...
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This is a famous puzzle based on the show "Let's make a deal". The host,...
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Mrs Goodsworthy has 6 gorgeous hats. 3 are green, 2 are blue, and 1 is canary yellow. Four...
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The game of "NIM" involves rows of matches laid out to make a triangle. When it is...
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The idea is to plod your way along all the streets on this map without going down a street...
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At the Pet Show recently I noticed that all except two of the entries were cats, all except...
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Look at the triangle of six pennies below: I want to turn this triangle upside-down: ...
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There is a monastery of silent monks with no mirrors and one important rule: no red eyes! If...
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A man on a park bench is looking at a small portrait. You ask him, "Who is that in the...
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You want to send a secret message to your friend Alex in the mail. But Sam, who you don't...
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At a restaurant downtown, Mr. Red, Mr. Blue, and Mr. White meet for lunch. Under their...
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You must take two different tablets (A and B) each day. If you forget one, or take more...
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A bridge will collapse in 17 minutes. 4 people want to cross it before it will collapse....
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In a boarding school there are fifteen schoolgirls who always take their daily walks in groups...
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The first box has two white balls. The second box has two blue balls. The third box has a white...
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At a restaurant, how could you choose one out of three desserts with equal probability with...
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There are three Athletes (Alex, Brook and Chris) and their individual Coaches (Murphy, Newlyn...
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Three people enter a room and have a green or blue hat placed on their head. They cannot see...
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Professor Frantic set these three problems to her class of maniacs at Clueless University....
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Arrange these six marbles so that each one touches all four marbles of a different colour.
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Three sisters are identical triplets. The oldest by minutes is Sarah, and Sarah always tells...
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There are only two barbers in town One of them has a nice, neatly trimmed head of hair....
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The diagram below shows a pattern made up of squares: How many squares can be found...
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