instruction:
Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
question:
The American television series 'The Lone Gunmen', which centred on a group of investigators who ran a conspiracy theory magazine, was a spin-off of which other succesful series?
answer:
the x-files

question:
The controversial book The Female Eunuch appeared in 1970. Who was the author ?
answer:
germaine greer

question:
Oct 5, 1902 saw the birth of Ray Kroc, who started which ubiquitous food source, the most successful fast food operation in the world?
answer:
mcdonald's