A million dollars' worth of $100 bills weighs only 22 pounds!
32
Cash machines are as dirty as public toilets.
175
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
Sudbury Valley School allows students to do whatever they want; no curriculum, tests, homework, or even classes unless requested. 82% of students get accepted to college, as opposed to the 63% national public school average.
21
It is impossible to hum if your nose is plugged.
366