• Water Lily

    Written by 3°6 blog in Riddles on 20 March 2014 à 12:25

    The first day, there is only 1 water lily in the lake. the second day, there are 2. Every day the number of flowers double. On the 50th day, the lake is full with flowers. When was the lake half full ?

     

    On the 49th day !

    « St Patrick's Day »

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