Everyone has questions, but at the same time, everyone has answers. Whether you realize it or not, you have a wealth of knowledge about topics that other people have no idea about, and that knowledge can truly help other people out. Just like you have questions about certain things and need assistance with them, other people may be able to look to you to get the answers that they need. When you really think about it, the world is basically just one large community of people with questions and answers, and Quora provides a home for that knowledge to live and grow.
If you can’t find an answer to a question that you have, then feel free to ask it and see what responses come in. Even if the question isn’t yours, you can follow it to get updates when new answers are provided. Unlike some other Q&A services, the community on Quora contains a lot of experts who can provide helpful answers. Hopefully even more thoughtful experts will join the community as the service continues to grow.