The continent that extends the furthest west is North America. On the other hand, the continent that extends the furthest east is Asia.
Antarctica extends farthest south of any continent.
South America
France, which extends to Finisterre.
I believe you mean country and that is Russia.
The Yukon Territory.
Virginia
The farthest north country is Denmark (via Greenland). The farthest east country is Kiribati.
Europe is the continent that extends west from the Dardanelles, the Black Sea, and the Ural Mountains.
The US State of Virginia extends further west than either West Virginia or New York.
Hawaii extends the farthest south.
Canada extends the farthest north and west compared to any other country. The northernmost point is in the Canadian Arctic Archipelago, while the westernmost point is in the Yukon Territory.
Maine is the state that extends the farthest east in the United States. Its easternmost point is West Quoddy Head, which is the easternmost point of the contiguous United States.