[Solved] A woman walked up to a man behind a counter and handed him a book. He looked at it and said, “That will be four dollars.” She paid the man and then walked out without the book. He saw her leave without it but did not call her back. How come?

This riddle has been around for some time on internet platforms such as Instagram, Facebook, and WhatsApp, and many people still argue over what the answer might be, as there are many possibilities. The correct answer is She was returning an overdue library book.