The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
Standard paper cannot be folded in half more than 7 times.
232
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
Sunflowers can be used to clean up radioactive waste.
17
The revenue that is generated from gambling is more than the revenue that comes from movies, cruise ships, recorded music, theme parks, and spectator sports combined.
15
It's impossible to kill yourself by holding your breath.
703
Speed dating was invented by a Rabbi in 1999.
45
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14