Diamonds mined in Brazil are harder than those found in Africa.
40
The key to happiness is spending your money on experiences rather than possessions, according to studies.
21
American car horns beep in the tone of F.
66
Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
12
It's impossible to sink in the Dead Sea without equipment!
72
The average American uses eight times as much fuel energy as an average person anywhere else in the world.
28
A quarter has 119 grooves on its edge, a dime has one less groove!
34
If you counted 24 hours a day, it would take 31,688 years to reach one trillion!
44