1. They are very thin

2. Francis Xavier

3. Xanadu

4. Hog

5. Triumph

6. Xenophobia

7. Distance walked based on number of steps taken

8. Queensland

9. Gough Whitlam

10. Michael Douglas and Catherine Zeta-Jones

HARDER:

11. Three Months

12. Removing or neutralizing a metal object’s magnetic field; to stop them setting off magnetic mines

13. Colin Dexter

14. Hannibal

15. Potomac

16. The Reverend Charles Lutwidge Dodson/ Lecturer in Mathematics

17. Uniform Resource Locator

18. Charlotte Corday

19. Petri dish

20. Adams