Yes. CM Answers questions are built as WordPress Posts so they are indexed just like posts are. Since all question titles are marked as an h1 title tag, search engines automatically look for it while indexing the page.
All you have to do is include your CM Answers Q&A forum in your site map and your discussion forum is ready to be crawled!
For instance once using XML-SiteMaps plugin make sure to choose the custom post type questions as part of the sitemap
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