The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
The most expensive license plate is the number '1', bought by an Abu Dhabi businessman - costing a staggering $14.3 million!
3
In 1976, an underachieving Princeton junior undergraduate wrote a term paper detailing how to make a nuclear bomb. He got an "A", but never got his paper back because it was seized by the FBI.
16
The Pittsburgh Steelers were originally called the Pirates.
50
A jiffy is an actual unit of time for 1/100th of a second. Thus the saying, I will be there in a jiffy.
57
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
In an average hour, there are over 61,000 Americans airborne over the United States.
24