alternative answer for 1. - curry. It cools down in temperature but make your mouth hotter the more of it you eat
but only if it's HOT curry! oh, who am I kidding, all curry is hot... But even if you were eating it cold, it would still be "hot" (spicy), so I guess it works, but not at a premium level. And the spiciness isn't effected by temperature, leaving your answer hopeless! haha! you can tell I'm a curry expert.