Quora - Quora is a place to gain and share knowledge. It's a platform to ask questions and connect with people who contribute unique insights and quality answers.

The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.

Hack App Data - Hack App Data app is an advanced data editor that provides features to enable users to edit the files saved in their phone’s internal storage by a large number of third-party apps.

Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.

Super User - Super User, part of https://alternativeto.

Ask Me Help Desk - Ask Me Help Desk is a question-and-answer site.