One in 500 humans has one blue eye and one brown eye.
145
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
You can only remember 4 things at a time.
31
Nearly 10% of American households dress their pets in Halloween costumes.
36
If you're over 100 years old, there's an 80% chance you're a woman.
143
There are 189 people named 'Lol' in the U.S.
11
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Yawns are more contagious among people with closer relationships.
163