"Questions" is an addon for Confluence which adds question and answer functionality to the wiki, as well as knowledge bases and some "gamification" stuff.
You've actually asked your question in a Confluence that has Questions installed, so you're using it now.
Have a quick look through the basics at https://www.atlassian.com/software/confluence and https://www.atlassian.com/software/confluence-questions and then ask us more!
Thanks so much to everyone who joined for our July Appy Hours! Product and project management presenter highlights Checkout - Procurement and asset manager, presented by @Vincent Mutambuki ...