There is no continent of Waikato, Waikato is part of the north island of New Zealand which is part part of Oceania.
Greece is a country on the European Continent, and the continent closest to it is Asia
Er... it depends I think. But probably Antarctica because it is cold or Africa because its hot? Duh
Neither Australia nor Antarctica are connected to any other continent or country.
1. Asia 2. Africa 3. North America 4. South America 5. Antarctica 6. Europe 7. Australasia