This question is from Module 0 Week 1 Challenge. The correct answer is 6 but I wrote 8. I googled it but they say zero is even. Is zero really even?? ]]>

So, although 0 is even, the pair that the question is looking for is still 2 and 6 since 0 is not positive. 0 is neither positive nor negative! A lot of problems will include words like "positive" and "nonnegative", so be careful when reading the questions in the future

Note: can you tell me what the difference between "positive" and "nonnegative" is?

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