What is the most useless fact you know?

The human brain smells like cool ranch.
Disco music makes mice homosexual.
If you count from 1 to 1,000,000 your lips won’t touch until you reach 1,000,000.
Animals that lay eggs don’t have belly buttons.
If you put your finger in your ear and scratch, it sounds just like Pac-Man.
Peanut butter can be turned into diamonds.
Men hiccups more than women.
If you plug your nose, you can’t tell the difference between an apple, a potato, and an onion.
You can’t bring a Furby to the Pentagon.
Chalk is edible.
The sperm of a mouse is longer than elephant sperm.
Fans of classical music and those who love heavy metal have similar personalities.
The most painful place to be stung by a bee is the nostril.
The verb form of the word “run” has been calculated to have almost 650 different meanings.
Sloths sometimes have such slow metabolisms that they starve to death on a full stomach.

Leave your upvote if something was interesting.