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.

[Q]: Which king experienced regicide at the hands of Shakespeare's Macbeth?
[A]: king duncan

[Q]: The sixth and first strings of a guitar are tuned to which note?
[A]: e

[Q]: Which country, other than England, has a city called London on a river called the Thames?
[A]:
canada