It is impossible to sneeze with your eyes open.
The term "redskins", Indians acquired, not because of the color of their skin, but because of the red color they put on their skin when they went to war.
Snake venom is dangerous only if it gets into the bloodstream. If ingested it is metabolized in the intestines and becomes harmless. Therefore, in Vietnam and Thailand, where they eat poisonous snakes, the rattlesnake is highly desirable.
When the Moon is directly above you, your weigh slightly less than usual.
During the Secession war troops would return to their cartels with a big sign that read “0 Killed”. From that, the phrase O.K. derived from.
Turtles can breathe through their backsides.