My problems, ranked from most to least favourite:

1. Canadian Cactus Competition (12p)
2. Shell Swap Scam (5p)
3. Liars (15p)
4. No More Telemarketers (7p)
5. Alchemy 2 (7p)
6. Signpost (20p)
7. No More Coyotes (15p)
8. No More Cell Phone Messaging (10p)
9. Fluke (10p)
10. Work Experience (10p)
11. No More Snakes and Ladders (17p)
12. Mixed Doubles (7p)
13. Alchemy (20p)
14. A Boring Problem (10p)
15. LIS Reconstruction (7p)
16. Potted Plants (12p)
17. Secret Sequence (7p)
18. Nils++ (17p)
19. Permutation Counting (12p)
20. No More Separation (5p)
21. Maximum Damage (10p)
22. Travel Budget (20p)
23. Rumour (15p)
24. No More Solitaire (20p)
25. Number Pyramid (7p)
26. Snap (5p)
27. Betting (5p)
28. Topology (15p)
29. Circle Cutting (7p)
30. Mirror Maze (17p)
31. Hopping Kangaroos (17p)