Which is the largest lake in the world by surface area?

Which is the deepest lake in the world?

Which country has the most Nobel Prize winners in total?

Which ancient wonder of the world still exists today?

What is the capital city of Italy?

What is the name of the world's longest wall built across northern China?

What is the currency of Italy and most eurozone countries?

Which international organization focuses on providing loans to developing countries for poverty reduction?

Which country is the world's largest producer of crude oil?

Which world organisation works specifically to promote and safeguard international trade?

Which is the world's busiest airport by passenger traffic?