Have you ever heard someone crystal clear, but still asked, "What?", because you didn't understand at all?

It seems that a lot of times I say something to someone and I have spoken very clearly yet they still are puzzled for the first couple seconds.

Don’t get me wrong; I do this as well. For instance someone might say, “Pass the salt!”, to which you might expect my simply passing the salt, but on some occasions I say “What?”, or “Huh” as if my brain is pudding.

Do our brains turn to pudding if we are not looking!?