Yes, a Question can be mentioned on a Confluence page. Like any Confluence content, when it's linked, Confluence keeps the title up-to-date if the title changes.
If you link an answer, then it will reach the page of the question, but it doesn't particularly highlight the answer.
Note that you can install an evaluation version of Confluence to test this kind of things. You can create an evaluation license on my.atlassian.com, or if you've purchased it, you can create "developer licenses" in addition to the license you've purchased. Concerning plugins, you can try them out either with an evaluation license or with a timebomb (3hrs) license.
Do you use templates with Confluence? Take part in a remote 1-hr workshop. You'll receive USD $100 for your time! We're looking for people to participate in a remote 1-hr workshop...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs