Stupid Questions

"Why are we here?" An Xiulan asked as he parked his motorcycle outside a restaurant and brought her inside. She saw him ushering her to the table and he passed her the menu. 

He gently knocked on her head. "Little blockhead, why do people go to the doctor?"

"To get treatment for sickness, " An Xiulan replied as she blinked her eyes. 

"Why do we go to lawyers?" He asked once again. 

"You know why we do, " An Xiulan said. "But the question is why are you asking me these questions? I know we both know the answer to this question. Isn't it stupid to ask the questions?"

"Exactly, "Han Zixin said. "If you know they are stupid questions, then why do you ask one?"