This type of logic riddle is called a "zebra puzzle". It is often called "Einstein's Impossible Riddle" or something similar because some say Albert Einstein invented it, although there is no proof of this. It has also been said that Lewis Carroll invented it. There are many versions of this puzzle, but all of them are fairly challenging. A common claim is that only 2% of the population can solve it, but again, there is no proof. Test your riddle-solving skills against this version of the zebra puzzle:
In a street, there are five houses painted five different colors. In each house lives a person of a different nationality. These five homeowners each drink a different kind of beverage, smoke a different brand of cigar, and keep a different pet.
The question: Who owns the fish?
Use the hints below to answer the question.
1) The Brit lives in the red house.
2) The Swede keeps dogs as pets.
3) The Dane drinks tea.
4) The green house is on the immediate left of the white house.
5) The owner of the green house drinks coffee.
6) The smoker of Pall Mall keeps birds.
7) The yellow house owner smokes Dunhill.
8) The horse owner lives next to the Dunhill smoker.
9) The center house owner drinks milk.
10) The Norwegian lives in the first house.
11) The smoker of Blends lives next to the cat owner.
12) The Blue Master smoker drinks beer.
13) The German smokes Prince.
14) The Norwegian lives next to the blue house.
15) The Blends smoker has a neighbor who drinks water.
On the next page:
- suggestions for ways to help you solve this puzzle
- the link to a YouTube video that gives step-by-step instructions on how to solve this puzzle
- the answer to this puzzle