I Love Riddles
So, does anyone have any interesting puzzles or riddles?
SW-User
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ArtistRajaBhaiya · 36-40, M
Here it goes:
20 prisoners are made to stand in a line, all facing forward and none allowed to look behind himself. The evil warden places a hat on each prisoner and all the hats are either red or black. Beginning with the last person in line (who can see the 19 people ahead of him) and moving person by person to the front, the warden will ask each what color hat he has on his own head. Those who are wrong will be executed.
Devise a strategy for the prisoners which will guarantee the safety of as many as possible.
No coded signals are allowed, no coughs, sneezes etc. All of them would be executed if anyone tries anything fishy. They can only utter the color black or white whatever they think is on their head.
20 prisoners are made to stand in a line, all facing forward and none allowed to look behind himself. The evil warden places a hat on each prisoner and all the hats are either red or black. Beginning with the last person in line (who can see the 19 people ahead of him) and moving person by person to the front, the warden will ask each what color hat he has on his own head. Those who are wrong will be executed.
Devise a strategy for the prisoners which will guarantee the safety of as many as possible.
No coded signals are allowed, no coughs, sneezes etc. All of them would be executed if anyone tries anything fishy. They can only utter the color black or white whatever they think is on their head.