| Title | Detail | Hits  | Rating |
| I turn polar bears white | ... more>>> |  | |
| Measuring water | If you had an infinite supply of water and a 5 gallon and 3 gallon bucket, how would... more>>> | | |
| Moving circles | Take a look at the following picture. It is not animated or moving at all - it's your eyes... more>>> | | |
| The Rope Bridge | Four people need to... more>>> | | |
| Do you see a young or old woman | Look at the image below. Do you see a young woman, or an old woman? ... more>>> | | |
| 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, ho... more>>> | | |
| Greater than God | What is greater than God. More evil than the Devil. Rich people need it. Poo... more>>> | | |
| Zebra Puzzle | This was supposedly created by Einstein, and some claim only 2% of the world can solve it.... more>>> | | |
| The biggest area | A farmer challenges an engineer, a physicist, and a mathematician to fence off the largest amount... more>>> | | |
| Disappearing dots | Stare at the black cross in the middle. After 30 seconds or so, the pink circles will disap... more>>> | |
