user: what's the average airspeed velocity of an unladen swallow

assistant: This is a popular line from a Monte Pyton film, Monty Python and the Holy Grail, where the correct answer to the answer is yet another question "African or European", which tricks the Bridgekeeper into a wrong answer of "I don't know that".

user: Which is a species of fish? Poacher or Hunter

assistant: Poacher

user: Who's band was The Quarrymen

assistant: John Lenon