I would read the joke opener, and then we'd guess what the answer would be. Here are my favorites. See if you can determine which ones were made up by us, and which were the Laffy Taffy answers.
Q: If your dog kisses you, what do you call it?
A2: A pooch smooch.
Q: What do you call an owl in armor?
A2: Knight owl.
Q: What has a head and tail but no body?
A1: A linked list.
A2: A coin.