Assuming that you are perfectly well and not in any grumpy mood, what do you normally say if someone asks you the above question? While in India, a simple ‘Fine’ would be fine. Over here in UK, most likely you would get “not too bad” as an answer. In fact, the question itself would be different – “you awright mate” (you all right mate?). Recently I threw this customary question to someone in US and got “staying out of trouble” as reply. I heard the same from 2 more people from Milwaukee (USA). Wonder how many different ways are there to answer people. Nevertheless, they are interesting indeed. But nothing to beat a “sooobera keeren mamu”.