Related:

• How many light bulbs -- does it take to change a light bulb?
  One, if it knows its own Goedel number. Note: A Goedel Number is one of several ways to encode a Turing Machine, the classical abstraction of a computer, or for that matter of any algorithm....
• How many light bulbs -- does it take to change a light bulb?
  Two, the new one and the old one. (hahahahah ???)...
• How many maths students -- does it take to change a light bulb?
  20. One to change it and the rest to watch and discuss how exciting it is....
• How many Arians -- does it take to change a light bulb?
  Only one, but it takes a lot of light bulbs. (*smash*)...
• How many jugglers -- does it take to change a light bulb?
  One, but it takes at least three light bulbs....
• How many Soviet emigres -- does it take to change a light bulb?
  One, and a lot of light bulbs....
• How many gardeners -- does it take to change a light bulb?
  Three. One to change it and two to have a debate about whether this is the right time of year to be putting in light bulbs or daffodil bulbs....
• How many missionaries -- does it take to change a light bulb?
  101. One to change it and 100 to convince everyone else to change light bulbs too....
• How many lesbians -- does it take to change a light bulb?
  Two, one to do it and one to make a video documentary about it....