Bertrand Russell solved the puzzle of how you can talk sense about things that don't exist
Saying 'the present King of France is bald' seems to force you to admit a nonexistent king is real just so the sentence makes sense. Russell argued the sentence secretly makes three separate claims — that a king exists, that there's only one, and that he's bald — so when no king exists, the whole statement is simply false, not meaningless or mysteriously about a phantom king.