Einstein's Riddle

There are 5 houses in a row in 5 different colours. In each house lives a person with a different nationality. Each one drinks a certain beverage, smokes a certain cigarette, and keeps a certain pet. None of them have the same preferred beverage, cigarette or pet.

Facts:
1. The Brit lives in the red house.
2. The Swede keeps dogs.
3. The Dane drinks tea.
4. The green house is on the left of the white house.
5. The owner of the green house drinks coffee.
6. The person smoking Pall Mall keeps birds.
7. The owner of the yellow house smokes Dunhill.
8. The owner of the centre house drinks milk.
9. The Norwegian lives in the first house.
10. The Blends smoker lives next to the cat owner.
11. The Dunhill smoker has a neighbour who keeps horses.
12. The person who smokes Bluemasters also drinks beer.
13. The German smokes Prince.
14. The Norwegian lives next to the blue house.
15. The Blends smoker has a neighbour who drinks water.

Who owns the fish? Einstein said that 98% of the world's population would not be able to solve this.