Einstein's Riddle

Albert Einstein — the riddle of the century


The Zebra Puzzle (often called “Einstein’s Riddle”) was published in Life International on 17 December 1962. It is frequently — and without solid evidence — attributed to Albert Einstein.

There are five houses. Each is a different color. In each lives a person of a different nationality. Each drinks a different beverage, smokes a different brand of cigarettes, and keeps a different pet.

Clues:

  1. There are five houses.
  2. The Englishman lives in the red house.
  3. The Spaniard owns the dog.
  4. Coffee is drunk in the green house.
  5. The Ukrainian drinks tea.
  6. The green house is immediately to the right of the ivory house.
  7. The Old Gold smoker owns snails.
  8. Kools are smoked in the yellow house.
  9. Milk is drunk in the middle house.
  10. The Norwegian lives in the first house.
  11. The man who smokes Chesterfields lives in the house next to the man with the fox.
  12. Kools are smoked in the house next to the house where the horse is kept.
  13. The Lucky Strike smoker drinks orange juice.
  14. The Japanese smokes Parliaments.
  15. The Norwegian lives next to the blue house.

Now, who drinks water? Who owns the zebra?

(A popular variant asks “Who owns the fish?”)


Author: Anonymous (often misattributed to Einstein)

Source: Zebra Puzzle / “Einstein’s Riddle,” Life International, 17 Dec 1962

Original: https://en.wikipedia.org/wiki/Zebra_Puzzle