TWENTY QUESTIONS

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       Have you ever played the game "Twenty Questions," in which one person thinks of something and the other person gets to ask a maximum of twenty questions to figure out what it is?  Each question has to be a yes or no question.  The secret to winning is to ask each question in a way that the answer divides up the remaining universe of possibilities into roughly two equal parts.  For example, "Is it alive?"  "Is it bigger than a bread box?"  "Smaller than a house?"  etc.  

       By doing this, mathematically, you can find out what it is out of 1,048,576 possible things.  If you take 1,048,576 and divide it by two, repeatedly, twenty times, the end result will be the number one.  Grab your calculator and try it.