Multiple choice general knowledge math & puzzles Is it legal for a man in New York to marry his widow's sister? No Don't Know Yes Only if he is never been married Reveal answer Fill a bubble to check yourself A Correct answer Explanation This is a riddle. If a man has a 'widow', it means the man is dead. A dead man cannot marry anyone, regardless of the legality of marrying a sister-in-law. Therefore, the answer is 'No'.