A children's problem to test the aptitude of politicians

There is a reason why the question below, from a Hong Kong elementary school test, is making the rounds on the internet.  Most adults can't solve it – not for want of math skills, but because most of them have lost the child's ability of unconventional thinking.  Instead, they have acquired the debilitating unwillingness to try a different perspective. The answer to the problem is provided below, but before you give up, here are some clues. This problem is not mathematical, but rather philosophical.  It proves that, in spite of what the modern "progressive" philosophers tell us, not all viewpoints are equally valid; in most cases, there is only one point of view that leads to the right answer.   This may cause objections from proponents of moral relativity, who believe that everyone's viewpoint is correct in its own way.  Moral relativity is merely a nice-sounding cover for intellectual laziness; it relieves one of...(Read Full Article)