A few of the questions asked about "open source software" in such a way that, responding to them directly, I'd be classifying programs as "open" or "closed". That I will not do, because those terms presuppose a different philosophy based on different values.
Rather than give no answer to those questions, I modified them to say "free software" instead, and answered them that way. (Square brackets show these changes.) I hope the answers to these modified questions are of interest to readers. They are rather different from what an open source supporter would say.