Jim Ward:
Another one from recent years is Th13teen Ghosts.
The Secret of My Succe$s (1987) substitutes a dollar sign for a letter.
What I want to know is why all those people who correctly put '2001' for answer 4 *didn't* correctly

put Clarke here!
Surely this is a typo for 'electron' and should have been combined with it, thus improving my score?
Yowp! Was this the same entrant who put 'Peanut' for an SF author, by any chance?
Did any of the entrants actually write it as 'King's Cross St. Pancras', Jim, or was that your emendation? I'm guessing (now) that people thought of King's Cross because of the Harry Potter book/movie series, and put