You can only remember 4 things at a time.
31
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
City dwellers have longer, thicker, denser nose hairs than country folks do.
48
Only about 2% of the world population has green eyes.
36
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Englishmen drink more tea than any person of any other nation (over twenty times more than Americans)
123
One in 500 humans has one blue eye and one brown eye.
145