1. All thumbs
2. A bad apple
3. A dog in the manger
4. A tough nut to crack
5. Big shot
6. Fat cat
7. The long and short of it
8. The last straw
9. Laugh one's head off
10. Shoot in the dark
11. To get one's head around
12. Fate is sealed
13. When hell freezes over
14. Haste makes waste
15. Lay some sweet lines on
16. Fat chance
17. A cold fish
18. Make it
19. Once in a blue moon
20. It's all Greek to me.
21. Behind someone's back.
22. Think outside the box
23. Re-invent the wheel
24. Play something by ear
25. Strike a balance between