It mostly depends on your content, external links and sitemap, and if keyword is a brand name which your site is considered it's holder or main authority about it.
Since google's secret algorithm decides on how your links should be shown there is no 100% solution. however using a more structured sitemaps like the ones generated by q2a ultimate seo should help. also you can remove most navigation links and use 1 list for questions and 3 static pages(or pages which don't list questions because it might list duplicates of that one page you kept).
