How many Contras -- does it take to change a light bulb?

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• How many Contras -- does it take to change a light bulb?
  One, but he needs one Iranian, one Israeli, four Canadians...
• How many lawyers -- does it take to change a light bulb?
  It only takes one to change your bulb to his bulb...
• Q: How many lawyers does it take to change a light bulb?
  A: One. Only it's his light bulb when he's done...
• How many Heisenbergs -- does it take to change a light bulb?
  If you know the number, you don't know where the light...
• How many one-armed people -- does it take to change a light bulb?
  Only one, as long as he kept the till receipt...
• How many Arians -- does it take to change a light bulb?
  Only one, but it takes a lot of light bulbs....
• How many husbands -- does it take to change a light bulb?
  We'll know as soon as one gets off the couch and does...
• How many NCAA basketball players -- does it take to change a light bulb?
  Only one. But he gets money, a car, and three credit...
• How many psychiatrists -- does it take to change a light bulb?
  Only one, but it takes a really long time and the light...