Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
20252 is Smokey the Bear's own zip code.
35
Pollen can travel up to 500 miles in a day.
40
There are 635,013,559,599 possible hands in a game of bridge.
39
In the case of an emergency, a Crayola crayon can be used as a candle and will burn for about 15 minutes.
36