The average IQ is 100, while 140 is the beginning of genius IQ.
140
You can tape a small mirror onto a cone speaker, play music and shine a laser on to the mirror and the reflection will look like a laser light show on your wall.
102
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
Play-Doh was first manufactured as a wallpaper cleaner.
122
New York's Central Park is nearly twice the size of the entire country of Monaco.
42
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 hole in the soda can tab is actually used to hold a straw in place and stop it from rising.
27
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240