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
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
Extremely high pressured water can easily cut through a steel beam.
51
Wearing red increases attraction.
30
At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
25
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4