At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
25
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's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
It's impossible to kill yourself by holding your breath.
703
It's impossible to sink in the Dead Sea without equipment!
72
All the gold ever mined could be molded into a cube 60 feet high and 60 feet wide.
38
To get a song out of your head, try doing something like a puzzle or Sudoku.
13
In the U.S., more than 10% of lottery prizes go unclaimed!
55