Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Coins usually survive in circulation for about 30 years.
66
There is one slot machine in Las Vegas for every eight inhabitants.
58
Sunflowers can be used to clean up radioactive waste.
17
80% of millionaires drive used cars.
68
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
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13