| Title | Detail | Rating | |
|---|---|---|---|
| What word comes next | What word comes next in this sequence? Nom, Suet, Sweden, Hurts... more>>> |  | |
| 1234 Challenge | Can you move one ball to reverse the pattern?... more>>> | | |
| Japanese IQ Test | This is an IQ test given to job applicants in Japan. Beside a river there is:FatherSon 1Son... more>>> | | |
| Moving dots | ... more>>> | | |
| The Three Knights | During the age of the medieval empires, when knights and barbarians fought against each other, a man was captured and sentenced to death for... 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>>> | | |
| The Last Horse | A King was traveling to a neighboring kingdom when he suddenly became ill. He had two sons, and they came to visit the King in this neighboring... more>>> | | |
| 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>>> | | |
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Brain Teasers
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!