Answering questions can appear daunting at first, but once you get the swing of things it comes easier. For example, this page is a great tool to use when answering questions.
Here is more information on using the answer page.
As you become more familiar with the system, then you can setup alerts of questions you know how to answer.
Please see these two discussions for more details:
How do I create a saved search?
How do I edit a saved search?
Let me know if you have any questions.