Wednesday, June 28, 2006

How high is your IQ?

I'm fan of Detective Conan and Einstein. As usual as an engineer, we need to have high IQ to avoid from getting into problem, that what first principle told us.

Try this quiz, it's Einstein quiz. He claim that 98% if people are unable to solve this problem, so are you the 2% :)


  1. There are 5 houses in 5 different colours
  2. In each house lives a person with a different nationality..
  3. These 5 owners drink a certain beverage, smoke a certain brand of cigar and keep a certain pet.
  4. No owners have the same pet, smoke the same brand of cigar or drink the same drink.


  1. The Brit lives in a red house.
  2. The Swede keeps dogs as pets.
  3. The Dane drinks tea.
  4. The green house is on the left of the white house.
  5. The green house owner drinks coffee.
  6. The person who smokes Pall Mall rears birds.
  7. The owner of the yellow house smokes Dunhill.
  8. The man living in the house right in the centre drinks milk.
  9. The Norwegian lives in the first house.
  10. The man who smokes Blend lives next to the one who keeps cats.
  11. The man who keeps horses lives next to the man who smokes Dunhill.
  12. The owner who smokes Blue Master drinks beer.
  13. The German smokes Prince.
  14. The Norwegian lives next to the blue house.
  15. The man who smokes Blend has a neighbour who drinks water.

The question is Who keeps the fish?

Good luck and hope you are among the 2%.

========== Added on 6/7 =============
You can check your answer here.

If you read carefully the question, the correct answer is none. None of them keep fish because there is not fact / statement tell us this, however we get the answer by induction / deduction. The beauty of this quiz is that most of us will try to solve the question using the hard way instead of a simple answer.

So, are you the 2%?