1. Which country is the origin of the tango dance?

2. What is the largest desert in the world?

3. Which metal is liquid at room temperature?

4. What is the capital of Canada?

5. Who painted the Mona Lisa?

6. Which planet is known for its Great Red Spot?

7. What is the main language spoken in Brazil?

8. Which sea creature has three hearts?

9. Which country is known for its fjords?

10. Who is the author of '1984'?