i just created wordpress question and answer using my own theme. can you please review it http://www.pondicherrytimes.com/answers
To be honest, I don't like the design at all. The rainbow/nature stuff in the header doesn't seem to have anything to do with a Q&A theme and for overview's sake, you should make the big blue text the question and the standard text below it the answer. Really, if I had a question, I wouldn't find any reason to use your site. You have to do something to differentiate yourself, and the first step is by focusing on a niche and not make it broad like that.
Good effort for your own theme. Q&A website must have a good display of 'search'. I think it should be on the right side and far away from the logo. At least, the header is not messy