That's interesting -- on that question, I chose strongly disagree. I didn't think that such an answer could imply that I might think my race to be inferior. My first thought was like yours -- races are equal (more, or less -- there are biological differences aside from skin colour, such as genetic pre-dispositions towards certain diseases such as cystic fibrosis, but they don't affect capability or intelligence). From that, I took the root idea of the question as "some races are better than others", which, to me, is a such a repugnant attitude that I didn't feel I could do anything but choose strongly disagree. I think that's how I answered a lot of the questions -- I may not have had a strong opinion to the wording of the question, but on some level I could agree or disagree with the basic philosophy underlying the question.