| Fact or fiction | True or False |
| The most expensive letter in the world is worth $3.3 million | |
| Some mushrooms glow in the dark | |
| It's possible to tickle yourself | |
| The temperature of the moon is always hotter than boiling water | |
| Your teeth are harder than your bones | |
| Some people can hear their eyeballs moving | |
| The more you concentrate, the less you blink | |
| A flamingo eats with its head sideways | |
| The dead sea is six times saltier than any ocean | |
| Toenails grow faster than fingernails | |