That's a correct question, but the typical answer would be simply 'Once'.
The original poster did not clearly say he wanted a question that could be answered by his original sentence. Perhaps he'll be kind enough to clarify that for us.
the times do not matter,the first or second and so on...., that is important.example:I didn't do the thing they think i have done and now they are asking me if i did it or not. so i think now It is more clear to you.I think we should make a question beggining with "what".