This section was built to provide a forum to ask and answer questions of and from the community. Select the menu icon in the upper right corner of the social network or mobile app (it looks like 3 grey lines), go to What's New, then Q+A, and you can search all available questions, ask your own, mark something as useful, or browse and answer other members' questions. You can select the 'ask question' link next to the search box on the page to post a new question.
You can sort by Most Recent, Most Answered, Most Useful and Needs Answers.
Whenever you see content, you will notice a circle with a down arrow in the right hand corner of every question and answer. This will give you specific actions you can take. You can add to team, add to favorites, report content or spam, or block a user: