A duck’s quack doesn’t echo, and no one knows why.
The cigarette lighter was invented before the match.
The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.
Colgate faced big obstacle marketing toothpaste in Spanish speaking countries. Colgate translates into the command “go hang yourself.”
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
The average person who stops smoking requires one hour less sleep a night.
The roar that we hear when we place a seashell next to our ear is not the ocean -duh-, but rather the sound of blood surging through the veins in the ear.