Well, given cultural biases can have a huge influence on the results of IQ tests, (and we don't exactly have any other especially objective ways of measuring such things)...
Uhh... No. Why would people even ask such a thing anyway unless they had horrible intentions?
I don't think the genetic differences between the 'races' really amount to much of anything to begin with. (we're all human. Stop being so petty and face the reality that there's almost nothing in it in the end)
It honestly doesn't even matter whether something like this has any truth to it whatsoever or not.
Nothing good can come from trying to prove it, and generally the people that feel the need to bring it up tend to have some kind of ulterior motive for doing so.
In short, some questions it just isn't worth knowing the truth, whatever it may be, because the answer is going to piss people off and cause endless arguments and fighting no matter what it actually is.