Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
Teddy bears were named after U.S. President Theodore 'Teddy' Roosevelt.
23
The Statue of Liberty has US women's shoe size 879.
53
Each year, around 24,000 Americans are bitten by rats!
65
Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
76