Intelligent people have more zinc and copper in their hair.
233
There are two credit cards for every person in the United States.
2
47% of people have a nightmare at least once a month.
186
Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
Only about 2% of the world population has green eyes.
36
The average single man is one inch shorter than the average married man.
88