Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
Humans blink over 10,000,000 times a year!
97
Men laugh longer, louder, and more often than women.
61
Only 2% of the worlds population is blonde.
15
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11