Naturally Watermelon is circle or oval shape. But the human being has proved that we can make Square Watermelon and said " Hard work is the key that opens the door of success" The country Japan appears to have cornered the market on square-shaped fruit. Farmers in the southern Japanese town of Zentsuji have figured out how to grow their watermelons so they turn out square. It's not a fad. The technique actually has practical applications. "The reason they're doing this in Japan is because of lack of space," Therefore they creatively used intellectuals to lean the systems of making the maximum use of the space in packing.