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.

[EX Q]: In Keeping Up Appearances, who played Onslow?
[EX A]: geoffrey hughes

[EX Q]: Taylor Hawkins plays which instrument in the Foo Fighters?
[EX A]: drums

[EX Q]: An isotope of which metal was used to poison the Russian Alexander Litvinenko in London in 2006?
[EX A]:
polonium