Don't you think nearly all discussions here in Askville actually stem from a posted question?

Finding a question can be difficult or easy, depending on quite a few factors. If you have asked or answered the question you can go to your "my askville" page and look at the "History" page. There it lists any questions you have answered on the first tab, and the second tab has your questions that you asked.

If you commented in the discussion of a question, go to the "my askville" page and look at the "Discussions" page. It is sorted by latest comment so this can be challenging. If you didn't interact with the question, you can do one of two things.

First you can try to google the question by typing "askville question 5 answers" or something like that and see if it comes up. OR Finally you can go to the Topic page that you think it might be in for this question it's topics are askville and trivia. I would have gone to the askville Topic Page and looked under the closed questions.

You probably would have to read through many pages to get to it. Now to find questions easily in the future. When you see a question that is interesting, click on the "watch this question" button at the top of the questions page.

That way you can find it by going to your "Watchlist".