Doctor Riddle

Riddle: There are three doctors. A patient named Doug comes in. The doctors recognize Doug as their brother, yet, Doug has no brothers. How is this possible?

Answer: The doctors are his sisters. Source: https://riddles.com/10453

There are three doctors. A patient named Doug comes in. The doctors recognize Doug as their brother, yet, Doug has no brothers. How is this possible? — Doctor riddle by julia12 Riddle