Who owns the goldfish riddle

Now that the only unassigned wall color is yellow, this must be applied to the first house, where clue seven says the Dunhill smoker lives. And clue eleven tells you that the owner of the horse is next door, which can only be the second house. The next step is to figure out what the Norwegian in the first house drinks. It can't be tea, clue three tells you that's the Dane. As per clue twelve, it can't be root beer since that person smokes Bluemaster, and since you already assigned milk and coffee, it must be water.

From clue fifteen, you know that the Norwegian's neighbor, who can only be in the second house, smokes Blends. Now that the only spot in the grid without a cigar and a drink is in the fifth column, that must be the home of the person in clue twelve. And since this leaves only the second house without a drink, the tea-drinking Dane must live there.

The fourth house is now the only one missing a nationality and a cigar brand, so the Prince-smoking German from clue thirteen must live there. Through elimination, you can conclude that the Brit smokes Pall Mall and the Swede lives in the fifth house, while clue six and clue two tell you that these two have a bird and a dog, respectively.

Clue ten tells you that the cat owner lives next to the Blend-smoking Dane, putting him in the first house. There's no evidence to back up that apocryphal claim, but the rumor earned the popular logic puzzle the nickname " Einstein's Riddle.

Regardless of who actually came up with the riddle, it's not terribly difficult to solve — if you have the patience to think it through. There are no tricks to this riddle. Like Sherlock Holmes, all you need is logic and deduction. Five houses painted five different colors stand in a row. One person of a different nationality lives in each house. The five home owners all drink some type of beverage, smoke a certain cigar brand, and have a certain kind of pet. But none of the owners drink the same beverage, smoke the same type of cigar, or have the same pet.

The Brit lives in the red house. The Swede keeps dogs as pets. The Dane drinks tea. The green house is on the immediate left of the white house. The green house's owner drinks coffee. The owner who smokes Pall Mall rears birds. But are we sure that this is the only right solution? No houses are facing each other from the opposite sides of the road.

What is left unspecified is the orientation of the observer. Assuming that the houses are all on the same side of the road, are we on the side of the houses facing the road or on the opposite side facing the row of houses? The interpretation of left and right depends on the orientation of the observer. What if we flip our orientation?

Each person drinks a certain drink, plays a certain sport, and keeps a certain pet. This was given to me as an exercise in logic puzzles. I think it is a great puzzle.