Who owns that zebra ?
According to recruitment specialists, less than 1% of the population can solve this problem. ( I have no idea where this came from. )
This problem has 25 variables and 24 are given values. You will know you are right by checking the answer with all the known facts.
The question is based on the following question:
Who owns the zebra?
1. There are 5 houses.2. Each house has its own unique colour.
3. All house owners are of different nationalities.
4. They all have different pets.
5. They all drink different drinks.
6. They all smoke different cigarettes.
7. The Englishman lives in the red house.
8. The Swede has a dog.
9. The Dane drinks tea.
10. The green house is on the left side of the white house.
11. In the green house, they drink coffee.
12. The man who smokes Pall Mall cigarettes keeps birds.
13. In the yellow house they smoke Dunhill cigarettes.
14. They drink milk in the middle house.
15. The Norwegian lives in the first house.
16. The man who smokes blend lives in the house next to the house with cats.
17. In the house next to the house where they have a horse, they smoke Dunhill.
18. The man who smokes Blue Master drinks beer.
19. The German smokes Prince cigarettes.
20. The Norwegian lives next to the blue house.
21. They drink water in the house next to the house where they smoke blend.
(Only 21 points covering all variables)