Problem: Comparison of a back-translation with the original text is sometimes used as a check on the accuracy of the original translation, much as the accuracy of a mathematical operation is sometimes checked by reversing the operation. But the results of such reverse-translation operations, while useful as approximate checks, are not always precisely reliable. Back-translation must in general be less accurate than back-calculation because linguistic symbols (words) are often ambiguous, whereas mathematical symbols are intentionally unequivocal.
What symbol set has the property of being unintentionally unequivocal?
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Answer: unanswerable

Problem: In the high Renaissance, in fact, there was a hope that more direct knowledge of the wisdom of antiquity, including the writings of the Church fathers, the earliest known Greek texts of the Christian Gospels, and in some cases even the Jewish Kabbalah, would initiate a harmonious new era of universal agreement. With this end in view, Renaissance Church authorities afforded humanists what in retrospect appears a remarkable degree of freedom of thought. One humanist, the Greek Orthodox Platonist Gemistus Pletho (13551452), based in Mystras, Greece (but in contact with humanists in Florence, Venice, and Rome) taught a Christianised version of pagan polytheism.
What cities may have influenced the beliefs of Gemistus Pleto?
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Answer: Florence, Venice, and Rome

Problem: Law professor, writer and political activist Lawrence Lessig, along with many other copyleft and free software activists, has criticized the implied analogy with physical property (like land or an automobile). They argue such an analogy fails because physical property is generally rivalrous while intellectual works are non-rivalrous (that is, if one makes a copy of a work, the enjoyment of the copy does not prevent enjoyment of the original). Other arguments along these lines claim that unlike the situation with tangible property, there is no natural scarcity of a particular idea or information: once it exists at all, it can be re-used and duplicated indefinitely without such re-use diminishing the original. Stephan Kinsella has objected to intellectual property on the grounds that the word "property" implies scarcity, which may not be applicable to ideas.
What Law proffessor suppoert copyright?
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Answer:
unanswerable