Q: How do you make the number seven even?
A: Drop the "s."
Q: What's red and bad for your teeth?
A: A brick.
Q: What did one toilet say to the other toilet?
A: You look a bit flushed.
Teacher: "Why does a stone sink in water when you thrown it in?"
Student: "Because it does not know how to swim."
What goes up and down stairs with out moving? Carpet.