Standard paper cannot be folded in half more than 7 times.
232
More than 10% of the world's salt is used to de-ice American roads.
54
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
In many countries, urine was used as a detergent for washing.
17
There are 635,013,559,599 possible hands in a game of bridge.
39
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9
Real diamonds do not show up on x-ray.
36