Russia
Russia contains the most eastern point on the continent of Europe.
The most eastern point in Europe is in Russia (Cape Flissingski)
The Czech Republic is actually the most prosperous country in Eastern Europe.
The Soviet Union was the country that conquered most of eastern europe
Turkey
Czech Republic.
You have it the wrong way round. Germany WAS Nazi, and their armies occupied most of the countries in Europe.
Most likely Poland.
Czech Republic.
Spanish is not truly popular outside of Western Europe, despite being an official language of the European Union. In Eastern Europe, no country's Spanish speaking population exceeds 4% of the population. The Eastern European country with the most Spanish speakers is most likely Romania, as it is the only Eastern European country with a Romance language (Romanian).
Czech Republic.