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


[Q]: Lester B. Pearson Airport serves which Commonwealth city?
[A]: toronto


[Q]: Which boxer bit both of Evander Holyfield's ears in a fight for the WBA World Heavyweight Championship on 28 June 1997?
[A]:
mike tyson