0.5 In ounces, the weight of the bumblebee bat, the world's smallest mammal (a penny weighs slightly more)

2 The number of weeks the average person will spend over a lifetime waiting for traffic lights to change

4 The number of words in the English language ending in "-dous." They are tremendous, horrendous, stupendous, and hazardous.

3,000 The number of years it would take to count all the stars in a galaxy at a rate of one star per second

318,979,564,000 The number of possible ways of playing the first four moves per side in a game of chess