I love this kind of stuff.

The tune for the "A-B-C" song is the same as "Twinkle, Twinkle Little Star."

There are only three animals with blue tongues, the Black Bear, the Chow Chow dog and the blue-tongued lizard.

All swans and all sturgeons in England are property of the Queen. Messing with them is a serious offense.

Spiral staircases in medieval castles are running clockwise. This is because all knights used to be right-handed. When the intruding army would climb the stairs they would not be able to use their right hand which was holding the sword because of the difficulties in climbing the stairs. Left-handed knights would have had no troubles except left-handed people could never become knights because it was assumed that they were descendants of the devil.

Hydrogen gas is the least dense substance in the world, at 0.08988 g/cc
Hydrogen solid is the most dense substance in the world, at 70.6 g/cc

If you toss a penny 10000 times, it will not be heads 5000 times, but more like 4950. The heads picture weighs more, so it ends up on the bottom.

The dome on Monticello, Thomas Jefferson's home, conceals a billiards room. In Jefferson's day, billiards were illegal in Virginia.

Ben and Jerry's send the waste from making ice cream to local pig farmers to use as feed. Pigs love the stuff, except for one flavor: Mint Oreo.

When the University of Nebraska Cornhuskers play football at home to a sellout crowd, the stadium becomes the state's third largest city.

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

Carnivorous animals will not eat another animal that has been hit by a lightning.

Studies show that if a cat falls off the seventh floor of a building it has about thirty percent less chance of surviving than a cat that falls off the twentieth floor. It supposedly takes about eight floors for the cat to realise what is occuring, relax and correct itself. At about that height it hits maximum speed and when it hits the ground it's rib cage absorbs most of the impact.

Sir Isaac Newton was an ordained priest in the Church of England.

Almost half the bones in your body are in your hands and feet.

The average person falls asleep in seven minutes.

Your left lung is smaller than your right lung to make room for your heart.

Jet lag was once called boat lag, back before jets existed.

There are more beetles than any other kind of creature in the world.

Polar bears camouflage themselves more completely during a hunt by covering their black noses with their paws.

Percentage of Africa that is wilderness: 28%.
Percentage of North America that is wilderness: 38%.

Intelligent people have more zinc and copper in their hair.

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.

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.