In 75% of American households, women manage the money and pay the bills.
97
One in 500 humans has one blue eye and one brown eye.
145
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
Most of the world's people must walk at least 3 hours to fetch water!
38
Women mature much faster than men.
1k
If you're over 100 years old, there's an 80% chance you're a woman.
143
All babies are color blind when they are born.
114