Zebra Puzzle

Most well-known logic puzzle of the last century. The task of the riddle is as follows: there are 5 houses in a row. People of 5 nationalities live in them. Each of the 5 inhabitants keeps a certain pet, drinks a beverage and smokes a brand of cigarettes. Having 15 rules your goal is to solve the riddle and find out everything about the people. It seems quite simple at first sight. But it is som…