There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
The oldest living person smoked cigarettes from the age of 21 to 117.
13
The hands of the clock on the back of the $100 bill are set at approximately 4:10.
72
If you took a standard slinky and stretched it out it would measure 87 feet.
52
The French named one of their aircraft carriers after Ferdinand Foch, a man who once said "Airplanes are interesting toys but of no military value".
10
It's impossible to kill yourself by holding your breath.
703