- The sentence "The quick brown fox jumps over the lazy dog." uses every letter in the alphabet.
- Average life span of a major league baseball: 7 pitches.
- A duck's quack doesn't echo, and no one knows why.
- In the 1940s, the FCC assigned television's Channel 1 to mobile services (two-way radios in taxicabs, for instance) but did not renumber the other channel assignments. That is why your TV set has channels 2 and up, but no channel 1.
- The San Francisco Cable cars are the only mobile National Monuments.
- The only 15 letter word that can be spelled without repeating a letter is uncopyrightable.
- Hang On Sloopy is the official rock song of Ohio.
- The reason firehouses have circular stairways is from the days of yore when the engines were pulled by horses. The horses were stabled on the ground floor and figured out how to walk up straight staircases.
- The airplane Buddy Holly died in was the "American Pie." (Thus the name of the Don McLean song.)
- When opossums are playing 'possum, they are not "playing." They actually pass out from sheer terror.
- The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
- Each king in a deck of playing cards represents a great king from history. Spades - King David; Clubs - Alexander the Great; Hearts - Charlemagne; and Diamonds - Julius Caesar.
- 111,111,111 x 111,111,111 = 12,345,678,987,654,321.
- If a statue in the park of a person on a horse has both front legs in the air, the person died in battle; if the horse has one front leg in the air, the person died as a result of wounds received in battle; if the horse has all four legs on the ground, the person died of natural causes.
- Clans of long ago that wanted to get rid of their unwanted people without killing them used to burn their houses down - hence the expression "to get fired."
- Only two people signed the Declaration of Independence on July 4th, John Hancock and Charles Thomson. Most of the rest signed on August 2, but the last signature wasn't added until 5 years later.
- "I am." is the shortest complete sentence in the English language.
- The term "the whole 9 yards" came from W.W.II fighter pilots in the 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."
- Hershey's Kisses are called that because the machine that makes them looks like it's kissing the conveyor belt.
- The phrase "rule of thumb" is derived from an old English law which stated that you couldn't beat your wife with anything wider than your thumb.