Q: What is in the middle of nowhere? A: The letter H.
Did you hear the joke about the old man with the broken hearing aid? Neither did he.
What's red and bad for your teeth? A brick.
Grandma: "Remember, Johnny, we should never put off til tomorrow what we can do today." Little Johnny: "Okay, Grandma, that makes good sense, we'd better eat the rest of the cake then."