I would say that there is a questioner, but it is not a person, and that contemplating the question 'who is the questioner' can lead to a major realization. It may be imagined that the questioner is a person, but that which is asking the question is neither a person nor imaginary. The realization of who/what the questioner IS is earth-shatteringly powerful. This is why Ramana recommended that koan to people. If the resolution of the question were trivial, then Ramana would have been a fool to recommend it, but he was not a fool.