Dartboards are made out of horsehairs.
129
More than 10% of the world's salt is used to de-ice American roads.
54
Play-Doh was first manufactured as a wallpaper cleaner.
122
Over its lifetime, the average microwave requires more energy to display a digital clock than to heat food.
10
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
Hong Kong has more Rolls Royces per person than anywhere else in the world.
32
A typical full-time worker in the US with a four-year college degree earns about $50,000. This is 62% more than a worker with only a high-school diploma.
72