Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
Intelligent people have more zinc and copper in their hair.
233
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
Two in five people in the world marry their first love.
270
As many as one third Americans flush the toilet while they are still on it.
157
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