What is the smallest country in the world by area?

The ancient wonder 'Hanging Gardens of Babylon' was located in present-day?

Which gas is most abundant in Earth's atmosphere?

Which country is the largest by land area?

The Universal Declaration of Human Rights was adopted in which year?

The term 'Cold War' refers to the political tension between which two superpowers?

Who is considered the founder of modern nursing?

Who was the first woman to win a Nobel Prize?

The currency of Japan is?

The Suez Canal connects which two bodies of water?

Which scientist proposed the theory of general relativity?