Pumpkin Jokes Pumpkin Jokes Q: What's the ratio of a pumpkin's circumference to its diameter? A: Pumpkin Pi Q: How do you mend a broken Jack-o-lantern? A: With a pumpkin patch! Q: What's black, white, orange, and waddles? A: A penguin with a jack-o-lantern. Q: What's black, white, orange, and waddles? A: A penguin with a jack-o-lantern.