Oh yeah.... the question is: "2-How many times can you subtract the number 5 from 25?" It doesn't say anything about subtracting 5 from the result of the previous one. So, in theory, the second time I can again subtract 5 from 25.... and the third time, and so on.... "as many times as I like" :-)

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Are we human because we look at the stars, or do we look at the stars because we are human? Pointless really. Do the stars look back at us? Now that is a question!