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Sum of Everest elevation and Marianas Trench depth | ||||||||||||
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Population of Russia (millions) | ||||||||||||
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Division of China area by Spain area (aprox.) | ||||||||||||||||
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Number of inhabited Greek islands | ||||||||||||||||
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Number of Swiss cantons plus number of official languages in Switzerland | ||||||||||||||||||||||||
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Distance between Rome and Paris | ||||||||||||
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Antarctica area (millions of squared kilometers) multiplied by number of US states | ||||||||||||||||||||||||
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Number of United Nations member states | ||||||||||||
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Lake Superior area divided by lake Ontario area | ||||||||||||||||||||||||
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Rhine river length plus Orinoco river length | ||||||||||||||||||||||||
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