The first household refrigerators cost about $16,000, in today's money!
47
Tsunamis ( tidal waves ) travel as fast as jet planes.
97
There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
'Second Street' is the most common street name in the U.S.; 'First Street' is the sixth! "
41
Caffeine boosts memory.
405
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
You can start a fire with ice.
367