Best SEO Practices for Displaying FAQs throughout site?

[SeoJaz]

I've got an FAQ plugin (Ultimate FAQ) for a Wordpress site with tons of content (like 30 questions each with a page full, multi-paragraphs, of answers with good info -- stuff Google LOVES.)

Right now, I have a main FAQ page that has 3 categories and about 10 questions under each category and each question is collapsed by default. You click an arrow to expand it to reveal the answer.I then have a single category's questions also displayed at the bottom of an appropriate related page.  So the questions appear in two places on the site, always collapsed by default.Each question has a permalink that links to an individual page with only that question and answer.I know Google discounts (doesn't ignore) content that is hidden by default and requires a click (via js function) to reveal it.So what I'm wondering is if the way I have it setup is optimal for SEO?  How is Google going to handle the questions being in essentially three places: it's own standalone page, in a list on a category page, and in a list on a page showing all questions for all categories.  Should I make the questions not collapsed by default (which will make the master FAQ page SUPER long!)Does Google not mind the duplicate content within the site?What's the best strategy?