Roughly a quarter of the world's people live in China.
50
A study had men report their own penis size, and the average was found to be 6.1-6.5 inches. A subsequent clinical study actually measured penises, and found the average size to be 5.1-5.7 inches.
-3
Muhammad is the most common name in the world.
96
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
People in parts of Western China put salt in their tea instead of sugar.
16
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
Research has determined that most people are happiest at 7:26pm on a Saturday night.
70