what is the question that is a question and will always be a question

In this life, the number of questions is almost endless. There are so many answers we are in search for, some of which we will never find. Is there an answer for these questions? We may think not, but ultimately there is. The amount and effort of research determines the difficulty of finding that answer. Every question but one has a definite corresponding answer. What is that question that remains a mystery? The answer is …

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