Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
Babies cry but they don't produce tears until one to three months after birth.
238
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Every workday, 6.7 million people commute to Manhattan!
26
Muhammad is the most common name in the world.
96
Nearly 30% of female lottery winners hide their winning ticket in their bras.
95