Hydrogen is an explosive gas. Oxygen supports combustion. Yet when these are combined it is water which is used to put out fires. See more

Fish that live more than 800 meters below the ocean surface don't have eyes. See more

Males, on average, think about sex every 7 seconds. See more

The greatest recorded number of children one mother had was 69 children. Do the math! See more

The "sixth sick sheik's sixth sheep's sick" is said to be the toughest tongue twister in the English language. See more

If you are locked in a completely sealed room, you will die of carbon dioxide poisoning before you will die of oxygen deprivation. See more

There are no clocks in Las Vegas casinos. See more

Some Eskimos have been known to use refrigerators to keep their food from freezing. See more

A 'jiffy' is an actual unit of time for 1/100th of a second. See more