What do you call somebody who asks a question and somebody who answers a question?
I have exhausted the thesaurus with no real luck... any ideas?
EDIT: It is in reference to this - or any other StackExchange - site in which the question is posed by X and answer is submitted by Y.
EDIT 2: In the context of StackExchange, and the fact I need plurality (something I neglected to mention oooops), I have decided upon "Posters" and "Respondents"...