Which famous Australian actor starred in the movies 'Gladiator' and 'The Beautiful Mind'?

Which Australian city hosted the 2000 Summer Olympics?

What is the national airline of Australia?

What is the nickname for Australians?

Which famous Australian rock band released the song 'Down Under'?

What is the highest mountain on the Australian mainland?

Which state in Australia is known as the Sunshine State?

What is the national flower of Australia?

Who is Australia's most famous cricketer?

What is the famous opera house in Sydney called?

When is Australia Day celebrated?

What is the famous coral reef system off the coast of Queensland?

Which landmark is located in the heart of Sydney?

Who is the current Prime Minister of Australia?

Which animal is on the Australian 1 dollar coin?

Which city is the capital of Australia?

What is the national language of Australia?

What is the traditional Aboriginal instrument called?

Which Australian state or territory is home to the Great Barrier Reef?

Which famous Australian singer is known for her hits like 'I Should Be So Lucky'?