What useless facts are actually quite funny?

 

• Only one in 400 men is flexible enough to perform oral sex on himself. However, it is assumed that all 400 have tried it at least once.

• A human being has fewer chromosomes than a potato.
• The word checkmate comes from the Arabic شاه مات (šāh māt) and means "the king is dead".
• Hot water freezes faster than cold water. This is known as the Mpemba effect.
• Most ice cream contains pigskin (gelatin).

• The original story from "Tales from One Thousand and One Nights" begins with "Aladdin was a little Chinese boy".
• The Hawaiian alphabet has only 12 letters: A, E, I, O, U, H, K, L, M, N, P, P, W
• In the United States, 1 kg of potato chips costs two hundred times more than 1 kg of potatoes.
• Almost 80% of all animals on Earth have six legs.
• In the marriage ceremony of the ancient Inca Indians of Peru, the couple was considered officially married after they took off their sandals and gave them to each other.
• In zero gravity, the flame of a candle is round and blue.
• Only 8 percent of the world's money exists in physical form; the rest is digital.
• Crows are able to recognize human faces and may even be averse to some of them.