what would happen if Pinocchio said "My nose will grow now"?

He would follow up with a lie.

Nothing would happen/his nose would stay the same. And it's real easy to understand. You cannot lie in question form. Lies can only be expressed in statement form. You can delay something from happening by phrasing it as a question but it does not make it a lie. And for you theorists out there - simply because you know the answer to the question does not mean that you are lying by asking it. Questions require answers and it is the answers that are lies. I can see where your head is at though.

The quick answer: it would grow. Here's why:

He told the truth, because he knew the future of the question, therefore, it would stay the same, (for only a moment though), making it a lie, therefore it would grow.

His nose would fall off so he wouldn't have a nose to lie or tell the truth about.

thats easy! it would go out then back in because he was lying so the nose went out then he was telling the truth so it went back in!

it is called as a paradox. It's the same when you say," I'm lying"

I think you should just check it out.thank you

It will malfunction xD

it will make a hole in our earth .

That's clever :)