Dalek Alphabet
From Tardis Wiki, the free Doctor Who reference
One of the questions in one version of the UNIT Aptitude Test was how many letters there were in the Dalek Alphabet. However, this was a trick question: the correct answer was that the phrase "the Dalek Alphabet" contained 16 letters. (GAME: UNIT Initiation Test [+]Loading...["UNIT Initiation Test (game)"])