wHAT IS THE CORRECT WAY OF SPEAKING WHEN SOME ONE ASK ME A QUESTION? DO THEY HAVE ANY TICKETS OR DON'T THEY HAVE ANY TICKETS? WHICH VERB IS CORRECT?
Do you have tickets? is a direct question, to establish whether you do or do not. A very simple, straightforward question with no connotations otherwise.
Don't you have tickets? suggests you should. Are you hiding them from me? Do you mean that you weren't invited? I mean, like, everyone has tickets! Don't you?