1. Although he had had a bad experience with his business, he treated it as water off a duck's back — means:

2. He was told that the new plan he'd developed just wouldn't hold water — means: .......... .

3. Every time we came up with a new proposal, he would throw cold water on it — means: .......... .

4. After all the money that she's borrowed and also spent, she now finds herself in deep water — means: .......... .

5. He's decided to make a fresh start and regards all his old problems as water under the bridge — means:

6. Once he's earned a bit of money he immediately spends it like water — means: .......... .

7. Whenever she goes to that club she always feels like a fish out of water — means: .......... .

8. It's many years since we last met and a lot of water has passed under the bridge since then — means: .......... .

9. The jewels in that showcase are clearly of the first water — means: .......... .

10. Their job as advisers was to pour oil on troubled waters — means: .......... .