First and foremost, allow me to welcome you to the forum Answeree. As you are still a newbie, it's very normal that you are still going to be finding your feet on the site and how it works. Believe me when I say that I had the same problem when I was still new in the forum. I didn't even know how to calculate points or how many points that is equivalent to one dollar. But, it was as I kept asking questions on the forum and started getting quality responses from older members that I began to understand a lot of things about how the forum works.
So, when it comes to your question about why you are only able to give just four answers, it's not a problem from the site but a problem with you not finding a new content where you can offer your answers. Some questions are answered already, so there will only be options for replies.