I tend to get "are you black?" and I usually just say I'm Hispanic. My family doesn't have a clue on the specifics of where we came from but I had always been curious. A year ago I finally took a DNA test, so I'm:

61.7% Sub-Saharan African
30.2% European
3.3% East Asian & Native American
(4.9% Unassigned)

It's kind of fun replying to this question with my my ancestry composition! Lol. I do recommend a DNA test, it's kind of useless information but yet very satisfying at the same time.