One day, a young boy was asked by his teacher to tell him what the chemical formula for water was. The boy replied with "H-I-J-K-L-M-N-O". The Teacher was stunned. "That's not right, how did you come up with that?" The boy said, "Last week you said it was H2O!"
A blonde was playing Trivial Pursuit one night. It was her turn. She rolled the dice and she landed on "Science & Nature." Her question was, "If you are in a vacuum and someone calls your name, can you hear it?" She thought for a time and then asked, "Is it on or off?"
One day a medical professor and his class were standing over a corpse and the professor said, "There are two things to being a medical forensicist. First: Don't fear anything." After saying that, the professor shoved his middle finger up the corpse's anus and licked it. He then told the class to do the same. After hesitating, they all did it. "Next," the professor said, "you have to have a key observation finger. Thus, I licked my index finger."
A man walks into a chemist’s and says, "Can I have a bar of soap, please?" The chemist says, "Do you want it scented?" And the man says, "No, I’ll take it with me now."
Scientists have predicted the world will end in 2012, but that's just a guess when Chusk Norris' patience will run out.