Tell the same time
Two clocks register midnight at exactly the same time. One clock loses a minute an hour while the other clock gains a minute a hour. When will they again tell the same time?
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They will both register six-o’clock 360 hours later.
The engineering department was arranging for a rather expensive catered lunch to bid farewell to their retiring colleague. They calculated that it would cost each person $30. One good mathematician remarked, "It's lucky that there aren't five fewer of us to split the...