Sunday Puzzle-27 |
| Written by Administrator | ||||
| Sunday, 02 December 2012 | ||||
 Puzzle courtesy of Barry R. Clarke, columnist for The Daily Telegraph and international puzzle expert The Hardest Ever Logic Puzzle Although the following is a new puzzle, its method of solution can be derived from a similar puzzle credited to George Boolos and often referred to as ―The Hardest Logic Puzzle Ever. A prisoner in solitary confinement, who has no idea what day of the week it is, has been told that on each day for three consecutive days he can ask the guard on duty a question to which he will receive a 'yes' or 'no' answer. From the responses, he must announce on the third day what day of the week it is. If he is correct he will be set free, if not he will be executed. The prisoner is faced with several difficulties. A guard will either consistently tell the truth or consistently lie and on no two days of a week will the guard be the same man. Furthermore, although the guards understand English, they have been instructed to give a 'ho' or a 'mo' answer, one of them meaning 'yes' and the other meaning 'no'. The prisoner has no idea which is which. What line of questioning is sure to win the prisoner his freedom? Related reading: Sunday Puzzle-26 Sunday Puzzle-25 Sunday Puzle-24 Sunday Puzzle-23 Sunday Puzzle-22 Sunday Puzzle-21 Sunday Puzzle-20 Sunday Puzzle-19 Sunday Puzzle-18 Sunday Puzzle-17 Sunday Puzzle-16 Sunday Puzzle-15 Sunday Puzzle-14 Sunday Puzzle-13 Sunday Puzzle-12 Sunday Puzzle-11 Sunday Puzzle-10 Sunday Puzzle-9 Sunday Puzzle-8 Sunday Puzzle-7 Sunday Puzzle-6 Sunday Puzzle-5 Sunday Puzzle-4 Sunday Puzzle-3 Sunday Puzzle-2 Sunday Puzzle 
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| Last Updated ( Sunday, 02 December 2012 ) | ||||
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