Problems of Absurd Jokes

Why didn't the bicycle fall over? Because it was a unicycle.
What do you call a group of cats playing instruments? A meow-sic.
Why did the scarecrow win an award? Because he was outstanding in his field.
What do you call a person who doesn't listen to the radio? A person who doesn't listen to the radio.
Why did the astronaut break up with his girlfriend? Because he needed space.