On average, the life span of an American dollar bill is eighteen months.
33
When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
There are more than 10 million bricks in the Empire State Building!
75
Over its lifetime, the average microwave requires more energy to display a digital clock than to heat food.
10
62% of us pop our zits.
137
It's impossible to kill yourself by holding your breath.
22
To get a song out of your head, try doing something like a puzzle or Sudoku.
13