<P> And one more from the same theme appears in an Abbot and Costello routine in which Abbot asks Costello for a fifty dollar loan . Costello holds out forty dollars and says, "That's all I have ." Abbot responds, "Fine, you can owe me the other ten ." </P> <P> The riddle is used by psychotherapist (Chris Langham) with his mathematician client (Paul Whitehouse) in episode 5 of the 2005 BBC comedy series Help, </P>

Riddle about 3 guys going to a hotel