The gang of four that once ran the biggest protection racket in the east eventually got out of jail. Almost immediately, they began operating again in the same neighborhood. They had previously divided it into four territories: north, south, east and west. Because each mobster had always kept his operations in the same area, the police nicknamed them Mr. North, Mr. South, Mr. East and Mr. West.
Now the police received a reliable tip that this time each mobster was operating in a new territory. None of the new victims was willing to identify the mobsters from photos the police showed them, but three facts became clear, and that was enough for the FBI to work out which mobster was operating where. These are the facts:
1. Mr. East is not operating the North.
2. The North territory is not being operated by Mr. South.
3. The South territory is not being operated by Mr. East.
Can you tell who is operating in each territory?

VIEW SOLUTION BELOW

THE SOLUTION

The Protection Racket- Mr. North operates in the South. Mr. South operates in the East. Mr. Fast operates in the West. Mr. West operates in the North. Since Mr. Fasts area is not East, North or South, it must be West. Since Mr. Souths area cannot also be West, and its not South or North, it must be Fast. Mr. Norths area cannot be West or East, and it is not North, so it must be South. Mr. Wests area must be the only remaining area-North.