Related:

• This sentence would be seven words long if it were six words shorter.
• If the meanings of "true" and "false" were switched, then this sentence would not be false.
• If "Q" were to be castrated, would he become "O"?
• If writers were bakers, this sentence would be exactly a dozen words long. -- Douglas R Hofstadte
• Three Midwesterners, a Kansan, a Missourian and an Iowan, all appearing on a quiz program, were asked to complete this sentence
  "Old MacDonald had a . . ." "Old MacDonald had a carburetor," answered the Kansan....
• There was a plane crash over mid-ocean, and only three survivors were left in the life-raf
  he Pope, the President, and Mayor Daley. Unfortunately, it was a one-man life-raft, and quickly sinking, so they started debating who should be allowed to stay....
• O that my tongue were in the thunder's mouth! Then with a passion would I shake the world.
  -- William Shakespeare...