The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
According to CNN national security correspondent David Ensore, as of 2002 bin Laden had married four women and fathered roughly 25 or 26 children.
54
Roughly a quarter of the world's people live in China.
50
People with blue eyes are better able to see in the dark.
153
People who are lying to you tend to look up and to the left (their left).
178
People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
194
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82