Detailed Surver Report

We need to create a report of surveys like  this:

I know that maybe this can be done as a matrix report within custom report wizard, but we need to perform basic math operations with the rating before presenting it in the report (lets say that we need to pondarate each question's rating to get the overall score), that why we would like to have the report as a query, then we could modify specifics.

Can you provide help with the query?

Thanks