Here's my favorite joke that I changed slightly so it's club penguin related.
A plane is flying over club penguin. There's 50 puffles on it and one falls off. How many are left? (49.) In 3 steps explain how to put a whale in a refrigerator amusing it's possible. (Open the door, put the whale in, close the door.) In 4 steps explain how to put a fish in the refrigerator. (Open the door, take the whale out, put the fish in, close the door.) So the crabs are throwing a party and invite all the animals. One animal doesn't show up, which one and why? (The fish; it's in the refrigerator.) A penguin is crossing the ocean to the ice berg and the water is infested with sharks. But the penguin doesn't worry about the sharks, why? (The sharks are at the crabs' party.) The penguin does try to cross over to the iceberg but doesn't make it across, why? (A puffle falls from a plane and hits them on the head!)