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Be in awe of the remarkable beauty of mathematics in nature!
Can you tell bronze from gold?
The pieces of this puzzle are pretty original!
Help Queen Gertrude take on the challenge thrown by the King of toads!
Help Justin sort through the pieces of his jigsaw puzzle.
Go to the market to trade pumpkins, eggs, cheese and corn cobs!
Ready, set, take off your shoes!
Are you up for a challenge? You’re not allowed more than three cuts of a knife!
Time to show your marble collection! Is it unique?