The WD in WD-40 stands for Water Displacer.
30
The hole in the soda can tab is actually used to hold a straw in place and stop it from rising.
27
Cash machines are as dirty as public toilets.
174
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
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
The only king without a moustache in a deck of cards is the king of hearts.
63