Answer
Answering one of the questions is even easier. Just below each question there is a form, where you will be able to give your proposed answer to the question, along with some identification data.
Even if an answer has already been accepted, if you feel that there might be some things that were not clarified, you may post it as an alternative answer. Our moderators review all these answers, and make the necessary adjustments. Ofcourse, you will get the credits for it!