The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
The best recorded distance for projectile vomiting is 27 feet.
71
Like fingerprints, everyone's tongue print is different.
250
You can start a fire with ice.
367
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
The majority of suicides occur on a Monday.
393
No piece of square dry paper can be folded more than 7 times in half!
26
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