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.

Derived from the Greek word meaning perimeter, what is the text form of the sixteenth letter of the Greek alphabet?
pi

Broadcast on live TV, what Dallas nightclub owner shot and killed total asshat Lee Harvey Oswald?
jack ruby

The Secret Garden and Little Lord Fauntleroy are works by which writer?
frances hodgson burnett