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It is said that Father Christmas lives in a magical place near the North Pole. One of the extraordinary facts about this place is that the mean temperature when reported in degrees Celsius is exactly the same number as when reported in degrees Fahrenheit.
The puzzle of the month for December is to figure out what this number is.
Solutions to the Puzzle of the Month are available to subscribers only.
For many more mathematical puzzles visit the Transum Puzzles page.