Joke on a Postcard

Ever send a postcard and not sure the user really read it?! I wonder this from time to time and started telling jokes on the postcards and leave the punch line off...

So for this swap you will send 1 postcard to 4 partners. One the postcard you will write a joke or riddle but leave the punchline or answer as a response to the rating you receive.

Rules: No Homemade postcards, USA only. No ratings below 4.98. No Recent 1's or 3's. Though I am hard to offend some people are not so I'd advise you to tell silly good humored jokes and nothing that could possibly be offensive.