The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
Speed dating was invented by a Rabbi in 1999.
45
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
It takes the same amount of time to age a cigar as wine.
25
A jiffy is an actual unit of time for 1/100th of a second. Thus the saying, I will be there in a jiffy.
57