Roughly a quarter of the world's people live in China.
50
A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.
51
35% of the people using personal ads for dating are already married!
23
About 2/3 of American men prefer boxers to briefs.
83
The average single man is one inch shorter than the average married man.
88
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
On average women can hear better than men.
170
Every human spent about half an hour as a single cell.
144