Dueling is legal in Paraguay as long as both parties are registered blood donors.

Congo is the world leader in cobalt mining, producing two-thirds of the world's cobalt.

You expend more calories eating and digesting celery than there are in the celery itself.

Minus 40 degrees Fahrenheit equals minus 40 degrees Celsius.

Michael Jordan shaves his head on Tuesdays and Fridays.

The international telephone dialing code for Antarctica is 672.

Powdered non-dairy creamer is flammable (trust me on this).

Raindrops are not tear-drop shaped. They are rounded at the top and flat on the bottom.

Isaac Asimov is the only author to have written a book in all 10 Dewey-decimal categories.

There are 293 ways to make change for a dollar.

The purpose of the indentation at the bottom of a wine bottle is to strengthen the structure of the bottle and to trap the sediments in the wine.

The tip of a whip moves so fast that it breaks the sound barrier. The "crack" of a whip is actually a tiny sonic boom.

Mr. (Fred) Rogers was an ordained minister.

In a deck of cards, the King of Hearts (AKA the suicide King) appears to be sticking his sword through his head.

The wingspan of a Boeing 747 jet is longer than the Wright Brothers' first flight.

Starting with the number one, you would have to count to one thousand to use the letter "A".

The Statue of Liberty's tablet is two feet thick.

If done perfectly, any Rubik's Cube combination can be solved in 17 turns.