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
Up to the age of six or seven months a child can breathe and swallow at the same time. An adult cannot do this.
165
Muhammad is the most common name in the world.
96
Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
76
Most of the world's people must walk at least 3 hours to fetch water!
38
One in 500 humans has one blue eye and one brown eye.
145
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
