CR. Clock Confusion

Well, we’ve been a little haphazard about posting new segments! It’s summer after all… But we’ll be back! We have quite a bit lined up for the next few months.

In the meantime, here is an interesting puzzle about ambiguous clocks. This time, for example, can be read two different ways:


In a week or so, we’ll post the answer right here…


  1. dfollett76 said,

    July 31, 2007 at 8:44 pm

    I really like this puzzle. My hint is think in terms of angles and draw a graph. I got the answer by doing this but I’m not quite sure I really “grok” it.

  2. Nick said,

    March 6, 2010 at 7:44 am

    A great puzzle indeed!  My hint is to think in terms of a third hand.

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