I agree, that the question is a little flawed. But it's also perfectly reasonable. Flawed in the sense, that it depends WHAT universe, your talking about. In my opionion, there's different versions of the word. I Could be the only inhabitant of my universe, in that, Do i know or care what happens in the life of the guy that lives on the other side of town? I'll never meet him, and his life will almost certainly NEVER interact with mine. Then there's the Universe we look at as a human race, The thing that our planet floats through.
And as for the perfectly reasonable part of the question: Both situtation above CAN be answered as a yes. Simply because our LIVES can be considered OUR universes. And on cosmic level, even if our Solar system really is just a glass marble in some giant figure's pocket, this being's world COULD be called the Universe.
Mind you this is just my opinion AND my first post to this board =) Feel Free to tear it apart, as it's the only way to learn