Number Three is a paradox. If he says that his nose will grow now, and he's telling the truth, then his nose will grow. But if it grows, then that means he's telling a lie, and the statement would actually mean that his nose wont grow. But if that's the true meaning, then his nose shouldn't have grown in the first place, so that means he's lying, which means that the statement "my nose will grow now" is true, and the cycle starts over again.
That is all I got.
These are my paradoxes:
1) Everything I say is a lie.
2) What if you go back in time to kill your grandfather.