That’s one of the many bizarre questions interviewers at Google have asked potential job candidates over the years. Drawing a blank? That’s what the questioner wants: to see how you respond when the answer isn't obvious.
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But while weighing your own head might sound difficult, it is doable. (In fact William Poundstone wrote a book answering alleged Google interview questions in his work, Are You Smart Enough to Work at Google?). Your head, after all, is composed of matter and therefore has mass. But what if you were trying to measure something less, well, measurable?
In 1 Chronicles, King David decided to do just that.