You can't kill yourself by holding your breath. See more

Everyone is colourblind at birth. See more

Lightning bolts can sometimes be hotter than the sun (about 50,000 ºF, 27,760 ºC). See more

The magnetic North Pole shifts by about 7 meters a day. See more

Everyone has thirty-two teeth. See more

A 'jiffy' is an actual unit of time for 1/100th of a second. See more

Rubber bands last longer when refrigerated. See more

We lose half a litre of water a day through breathing. See more

The cruise liner, Queen Elizabeth 2nd, burns a gallon of diesel for each 6 inches that it moves. See more