Answer:
What has two heads but only uses one
Why to you never bring a Pokemon into the bathroom with you?
What is red, orange, yellow, green, blue, indigo, violet, red, orange, yellow, green, blue, indigo, violet, red, orange, yellow, green, blue, indigo, violet?
What kind of cup doesn't hold water
Why do the circle and oval only date shapes that are the same as themselves?
Why did the stadium get so hot after the game?