Tae Kwon Do is only around 60 years old.
64
It is impossible to hum if your nose is plugged.
366
The average IQ is 100, while 140 is the beginning of genius IQ.
140
Bullet proof vests, fire escapes, windshield wipers, and laser printers were all invented by women.
1k
Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
12
Stilts were invented by French shepherds who needed a way to get around in wet marshes.
45
If you had 10 billion $1 notes and spent one every second of every day, it would require 317 years for you to go broke.
109