Time to put your thinking caps on and join us for a fun World quiz!

1. What is the only food that cannot go bad?

2. What is the hardest natural substance in the world?

3. What is the most visited tourist attraction in the world?

4. What's the heaviest organ in the human body?

5. Who painted the Mona Lisa?

6. Which of these EU countries does not use the euro as its currency?

7. What element does the chemical symbol Au stand for?

8. In what country do more than half of people believe in elves?

9. What sport has been played on the moon?

10. What animal is the closest living relative of a human?

11. What are imitation crab sticks made of?

12. What animal species is the only male that gets pregnant?

13. What princess was traditionally called Badr al-Budur before Disney renamed her?

14. Russia is the world's largest country (by area), and what's the next­largest country for whic

15. The kiwi fruit is native to China.