CALIFORNIA (AFP) - Russian teens become the World geography bee champion after beating 16 countries in the compitition. They had to identify countries and regions of the world by economies, politics, and latitudes even by a type of tortoise. On Wednesday, the National Geographic world championship between teenagers from Canada, Russia and Chinese Taipei hinged on knowing which island has a population of about 57,000 people, with most settlements on its West coast. US game show host Alex Trebek, who presided over the brain Olympics at Googles campus in the California city of Mountain View, added that little of the large island is fit for farming. Egor Shustov, Masha Samoletova, and Alexander Bondarchuk knew that the gold medal would go to Russia. The three 16-year-olds had the answer to that final question Greenland and they held a narrow lead. We realised we were the champions, Shustov said. Sometimes I made stupid mistakes, but sometimes very difficult questions were easy for me, the Russian team captain said while looking back at the competition that featured teams from 17 countries.