Diamonds mined in Brazil are harder than those found in Africa.
40
There are 635,013,559,599 possible hands in a game of bridge.
39
Play-Doh was first manufactured as a wallpaper cleaner.
122
People who drink coffee are less likely to commit suicide than people who don't.
268
Speed dating was invented by a Rabbi in 1999.
45
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
'Second Street' is the most common street name in the U.S.; 'First Street' is the sixth! "
41
The key to happiness is spending your money on experiences rather than possessions, according to studies.
21