Related:

• How many psychologists -- does it take to change a light bulb?
  How many do you think it takes?...
• How many Directors -- does it take to change a light bulb?
  Three. No, five. No, you go away - four. YES! Four! Perfect!...
• How many marketing directors -- does it take to change a light bulb?
  It isn't too late to make this neon instead, is it?...
• How many movie directors -- does it take to change a light bulb?
  Just one, but he wants to do it thirty-two times and when he's done everyone thinks that his last light bulb was much better....
• How many Professors -- does it take to screw in a light bulb?
  None...what do you think their graduate students are for?...
• How many art directors -- does it take to screw in a light bulb?
  Does it have to be a light bulb?...
• How many alchemists -- does it take to change a light bulb? Into what?
• How many magicians -- does it take to change a light bulb?
  Depends on what you want to change it into....
• How many witches -- does it take to change a light bulb?
  It depends on what you want them to change it into....