the currency is what money type the country has - us dollar, pound, kronur
Danish currency is the currency of Denmark and is called the krone (kroner in the plural; international code DKK). Danish kroner are also legal tender in Greenland and the Faroe Islands. The krone...
Brunei.
The Rouble (or Ruble) is used in the countries of Russia and Belarus, and the autonomous territory of the Republic of Moldova, Transnistria.
Eurpoe is a continent, not a country. The most widespread currency in Europe is the Euro.