Approximately one-third of the population can't snap their fingers!
91
Intelligent people have more zinc and copper in their hair.
233
The Japanese commonly put ketchup on their rice.
16
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
On average, men's noses are 10% larger than women's.
12