"This is not a pipe" isn't a paradox. It's a painting of a pipe. https://en.m.wikipedia.org/wiki/The_Treachery_of_Images#Desc...

The famous pipe. How people reproached me for it! And yet, could you stuff my pipe? No, it's just a representation, is it not? So if I had written on my picture 'This is a pipe', I'd have been lying!