During his or her lifetime, the average human will grow 590 miles of hair.
69
In the case of an emergency, a Crayola crayon can be used as a candle and will burn for about 15 minutes.
36
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
The scent of women’s tears temporarily reduces sexual arousal and testosterone production in men.
12
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
A man earned 4 million airline miles for free without breaking any laws by using his credit card to purchase free-delivery $1 coins from the U.S. mint.
11
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244