On average, the life span of an American dollar bill is eighteen months.
33
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9
On average, 100 people choke to death on ballpoint pens every year.
72
New York's Central Park is nearly twice the size of the entire country of Monaco.
42
The first household refrigerators cost about $16,000, in today's money!
47
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55