The space between the 2 front teeth is called a Diastima.
The term "Checkmate" comes from the Arabic meaning "the king is dead".
The term "the whole 9 yards" came from W.W.II fighter pilots in the South Pacific. When arming their airplanes on the ground, the .50 caliber machine gun ammo belts measured exactly 27 feet, before being loaded into the fuselage. If the pilots fired all their ammo at a target, it got "the whole 9 yards."
The two lines that connect your top lip to the bottom of your nose are known as philtrums.
The word "queue" is the only word in the English language that is still pronounced the same way when the last four letters are removed.
The word "set" has more definitions than any other word in the English language.
There is no rice in rice paper.
Thirty-Five percent of the people who use personal ads for dating are already married.
Tigers have striped skin, not just striped fur.
To "testify" was based on men in the Roman court swearing to a statement made by swearing on their testicles.
Wearing headphones for just an hour will increase the bacteria in your ear by 700 times.
What is called a "French kiss" in the English speaking world is known as an "English kiss" in France.
When possums are playing 'possum, they are not "playing." They actually pass out from sheer terror.