Which country owns the Mediterranean sea?
No one country owns the sea
What is the capital of the only country that borders both the Mediterranean sea and the Caspian Sea?
What is the capital of not only country that one or both the Mediterranean Sea and the Black Se is the capital of not only country that borders both the Mediterranean sea and the black sea a?
What is the name of the capital of the only country that borders both the Mediterranean sea and the Black Sea?
There is not just one country on the Thracian Peninsula that borders the Mediterranean Sea (even though Thrace does not touch the Mediterranean Sea, since it it is up against the Aegean, Black, and Marmara Seas). These two countries are Greece and Turkey. The third country on the Thracian Peninsula, Bulgaria, does not touch the Mediterranean Sea.
Vienna is not a country, it is the capital of Austria, a country in Europe that does not border any sea. It might pay you to look at a map and see which European countries do border the Mediterranean Sea - you will find that most European countries don't border the Mediterranean Sea. If you look wider, you will find that most countries in the world do not border the Mediterranean.
Egypt is the country that borders both the Red Sea and the Mediterranean Sea. Israel is also said to touch both the Mediterranean and Red Seas as well, but this is inexact. Israel has access to the Red Sea by way of the Gulf of Aqabah and not directly as Egypt does. So strictly speaking, Israel only touches the Mediterranean Sea.