You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Sharks have been on the planet longer than trees.
14
A bag of marijuana was the first thing ever bought and sold over the internet.
22
The Shell Oil Company began as a novelty shop in London that sold sea shells.
4
Hot water can freeze faster than cold water.
181
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
44% of kids watch television before they go to sleep.
106