Phone-in trivia game
"...for the grand priza of one bazillion trillion million dollars, just call 222-222-2222 with the answer to this question: how many fingers am I holding up?"
You know, you wouldn't mind being filthy rich...
Call and answer, 'twelve.' Call and answer, 'the airspeed velocity of an unladen swallow.' Call and give a real answer. Don't bother calling; you won't win.