More often than you would think, the future members of Mensa that I wait on regularly ask me, "What exactly is the difference between the baked crab cakes and the fried crab cakes?" "How are broiled flounder and fried flounder different?" and similar inquiries.
I still have yet to come up with a better response than a blank stare and "One is..... baked? And the other is... fried?" Which probably makes me look like even more of an retard than they, because that question truly breaks my brain.