A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
On average, the life span of an American dollar bill is eighteen months.
33
Tae Kwon Do is only around 60 years old.
64
On average, every dollar bill you touch has over 3,000 different types of bacteria.
8
An iceberg contains more heat than a lit match.
73
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Diamonds mined in Brazil are harder than those found in Africa.
40
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18