If you want to create a site like Yahoo Answers where people can ask and answer questions about various topics or provide each other with advice, then you have to check out our favorite question and answer WordPress themes. Not only do these themes allow users to ask and answer questions, they also come with useful features like responsive layouts, banner ad space, support for paid question submission, rating and voting systems, reputation management, and more.
QAEngine — Question & Answer WordPress Theme
This question and answer WordPress theme features a responsive layout for mobile devices, support for multiple pricing plans and payment methods, user badges, a point system, a poll feature, and more.
This question and answer WordPress theme comes with support for paid question submission, a custom registration form, a voting system, a form for asking questions, 7 color schemes, support for multiple currencies, and more.
AskIt WordPress Theme
This question and answer WordPress theme has a voting system, 7 color schemes, complete localization, shortcodes, an advanced theme options panel, page templates, and more.
If none of these themes are quite right for your website, you can try WP-Answers, a WordPress plugin that will add a question and answer system to a new or existing site.
The WordPress question and answer plugin features a free responsive theme, Twitter and Facebook integration, spam and moderation tools, a configurable points system, automated content from Yahoo Answers, and more.