Teacher: "What is a nitrate?"
Little Johnny: "I'm not sure, but it's NOT cheaper than a day rate!"
Teacher: What is the lowest frequency noise that a human can register?
Little Johnny: A mouse.
Teacher: What is the highest frequency noise that a human can register?
Little Johnny: Mariah Carey.
Four-year-old Johnny was eating a hot dog when he dropped it on the floor. He quickly picked it up and was about to take another bite when his mom said, "No, Johnny, you can't eat that now it has germs."
Johnny pondered the thought a moment and replied, "Jesus, germs, and Santa Claus - that's all I ever hear about and I haven't seen one of 'em yet!"
Teacher: The first thing King Charles did upon ascending the throne was to…
Little Johnny: Sit down.