The examiner asked this question in the interview just to ask you the metaphor of bitter gourd. Work is like bitter gourd, sometimes you have to eat bitter, but for your own health, you still have to endure it.
I can't say that I like bitter gourd, but I know many benefits of bitter gourd, so I don't reject it. As long as you use the right cooking method, bitter gourd is not bad.
Sometimes, so does work. Although we don't like it, we can enjoy it when it is done.