If you select an answer to this question at random from the 5 choices below (*), what is the probability that you will be correct?
E: none of the above
(*) uniform probability distribution, "none of the above" includes "the question makes no sense"
added later: It is important that A and D are both 20% for the paradox to work. But assume that we change D to e.g. 30%, this would significantly change the puzzle; but would it be less paradoxical?
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