Question

What will happen if Pinocchio says "my nose will grow now"?

Answer 1

nothing, as he uses "will" implying a future event which means the statement is true

Answer 2

His nose will start growing

Answer 3

if he will lie then his nose will grow

Answer 4

he will die

Answer 5

Probably the same thing that will happen if he says "All voodleboogs are green".

Answer 6

his nose will grow an infinitesimal amount :)