The strange title comes from a skit by Benny Hill, where he tells his wife all the facts she shouldn't know, but she always answers "I know! I know!"
Anyway, this thread is suppose to be a collection of strange facts. Let's have fun!
Here are a few facts to ponter:
A duck's quack doesn't echo, and no one knows why.
Hershey's Kisses are called that because the machine that makes them looks like it's kissing the conveyor belt.
The name Jeep came from the abbreviation used in the army for the "General Purpose" vehicle or G.P.
The mask used by Michael Myers in the original "Halloween" was actually a Captain Kirk mask painted white.