Title | Detail | Rating | |
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Never there | ... 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>>> | ||
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>>> | ||
Red and Blue Marbles | You have two jars, 50 red marbles and 50 blue marbles. A jar will be picked at random, and then a marble will be picked... more>>> | ||
Mt. Everest | ... more>>> | ||
Running past second place | ... more>>> | ||
Boys and Girls | In a country in which people only want boys, every family continues to have children until they have a boy. If they have a girl, they... more>>> | ||
Why are manhole covers round? | ... more>>> | ||
Overlapping clock hands | ... more>>> | ||
Every man in a village has cheated on his wife | Every wife in the village instantly knows when a man other than her husband has cheated, but does not know when her own husband has. The... more>>> | ||
Moving picture | This picture moves all by itself... more>>> | ||
Solved by preschoolers in 5 mins | 8809 = 6 7111 = 0 2172 = 0 6666 = 4 1111 = 0 3213 = 0 7662 = 2 9312 = 1 0000... more>>> | ||
Who stole the cake? | During a recent police investigation, Chief Inspector Stone was interviewing five local villains to try and identify who stole Mrs Archer's... more>>> | ||
The next letter | Which letter should replace the question mark? OZW AO?WZ 11 ... more>>> | ||
umo apisdn | ... 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>>> | ||
Where is the father? | A mother is 21 years older than her child. In 6 years time, the mother will be 5 times older than the child. Question: Where... 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>>> | ||
Triangles | Which triangle has a bigger area: A. A triangle with sides measuring 300, 400, and 500. B. A triangle with sides... more>>> |
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!