The first one is not exclusive-or, though: if you wanted to eat pizza and pasta, you would not answer "no" to "Do you want to eat pizza or pasta?", you would an

The first one is not exclusive-or, though: if you wanted to eat pizza and pasta, you would not answer "no" to "Do you want to eat pizza or pasta?", you would answer "both". Rather, "or" is serving as a inclusive-or with (perhaps) the incidental implication that picking more than one doesn't make sense in the first place.