At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
25
When withdrawing money from an ATM, the 'whirring' sound before your money pops out is actually a recording. The actual mechanism is so far back that you can't hear it.
282
There are 2,500,000 rivets in the Eiffel Tower.
98
Most of the dust underneath your bed is actually your own dead skin.
251
The WD in WD-40 stands for Water Displacer.
30
The hands of the clock on the back of the $100 bill are set at approximately 4:10.
72
In 21 U.S. states, WALMART is the single largest employer.
13

