The Czech Republic Quiz

Here is this week's quiz:

1. What is the population of the Czech Republic?
2. What is most common ethnic group in the Czech Republic, and what percent of the population do they make up?
3. Could not retrieve question from site.
4. When did the Czech Republic join NATO and the EU?
5. When did the Czech Republic become its own country?
6. Who was the Czech Republic's first president?
7. What is the Czech Republic's currency?
8. Where is Vila Tugendhat
9. What is the capital of the Czech Republic?

Bonus Question: The Czech Republic was part of the communist Czechoslovakia. It split into two countries on January 1st 1993. What is the other country?