My Technical lead always asks one question to new interviewing candidates. "Write a SQL query to find the second highest salary from employee salary table". It's the same question which he faced in one interview and he didn't have answered it.
Sorry for my bad English..

Thanks @dfox for 1+

I had a superior like that before. He would ask interviewees questions to problems he was currently facing because he was shit at his job. I corrected him during my interview and that why I was hired, but he said I "held my ground" instead of admitting to being corrected.

If you can help him alleviate his pain you have a good chance of getting the job. It's all about 'him'. That is the key.