Title | Detail | Rating | |
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A coin a bottle and a cork | If you were to put a coin into an empty bottle and then insert a cork in the bottle's opening, how could you remove the coin without taking... more>>> | ||

The Rope Bridge | Four people need to cross a rickety... more>>> | ||

I turn polar bears white | ... more>>> | ||

Three switches | You're standing in front of a room with one lightbulb inside of it. You cannot see if it is on or off. Outside the room, there are 3... more>>> | ||

The Man in the Elevator | A man lives on the tenth floor of a building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening,... more>>> | ||

Socks in a drawer | There are 30 socks in a drawer. 60% of the socks are red and the rest are blue. What is the minimum number of socks that must be taken from... more>>> | ||

The wisest son | One day, a father went to his three sons and told them that he would die soon and he needed to decide which one of them to give his property... more>>> | ||

The safest room | A murderer is condemned to death. He has to choose between three rooms.The first is full of raging fires, the second is full of assassins... more>>> | ||

Black, red and grey | ... more>>> | ||

Three consecutive days | ... more>>> | ||

What's behind the Green Glass Door? | There are pillows but no feathers There are books but no newspapers There are trees but no bushes There are spoons... more>>> | ||

Two pieces of string | You have two pieces of string. If you ignite one string, it'll take exactly one hour to burn from one end to the other end. The... more>>> | ||

The next letter | Which letter should replace the question mark? OZW AO?WZ 11 ... more>>> | ||

Calculator words | 461375 is an example of a Calculator word - type it into a calculator, rotate the screen and the word "SLEiGh" appears ... more>>> | ||

House Foundations | A blue house is made of blue bricks. A yellow house is made of yellow bricks. A red house is made of red bricks. An... more>>> | ||

How would you weigh an aeroplane | ... more>>> | ||

The beginning of eternity | ... more>>> | ||

Bat and Ball | Can you work out this question that stumped 50% of Harvard students?... more>>> | ||

One Hundred Coins | You are in a dark room with 100 coins on a table, 12 are heads and the rest are tails, and the two faces are completely indistinguishable... more>>> | ||

Monty Hall Problem | Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You... more>>> |

Logic Puzzles

Language Puzzles

The Brain Teasers was formed in 2008 with the aim of providing a good collection of riddles, brain teasers and other challenging problems for you to solve!