Download 101 Puzzles in Thought and Logic (Math & Logic Puzzles) by C. R. Wylie Jr. PDF

By C. R. Wylie Jr.

Do you love puzzles in response to good judgment and reasoning? do that one:
In a undeniable financial institution the location of cashier, supervisor, and teller are held through Brown, Jones, and Smith, although no longer inevitably in that order. The teller, who used to be an basically baby, earns the least. Smith, who married Brown's sister, earns greater than the chief. What place does every one guy fill?
If you love to entertain your self and stretch psychological muscular tissues on difficulties like this or tougher ones, listed below are one zero one fullyyt new difficulties for that you want no distinctive wisdom, no mathematical training—simply the facility to cause clearly.
Follow those difficulties via and you may not just bring up your skill to imagine in abstractions, yet you are going to get pleasure from fixing homicide difficulties and robberies, see which fishermen are liars and the way a blind guy can determine colour in simple terms by means of common sense, and revel in dozens of attention-grabbing events. Puzzles variety from effortless to rather tricky, and should please either rookies and experts.

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Extra resources for 101 Puzzles in Thought and Logic (Math & Logic Puzzles)

Example text

I am younger than Grace. Grace is twenty three. Helen is three years older than Grace. It is of course too much to expect that three young women should be entirely truthful when speaking of their ages, and in the present instance only two of the three statements made by each girl are true. Can you deduce the age 0/ each one? 51 Three men were once arrested for a crime which beyond a shadow of a doubt had been committed by one of them. Preliminary questioning disclosed the curious fact that one of the suspects was a highly respected judge, one just an average citizen, and one a notorious crook.

In what order do the two sets 01 symbols correspond? 44 Three men named Barber, Cutler, and Drake have wives named Beth, Dorothy, and Louise. Each couple has a son, the names of the boys being Allan, Henry and Victor. Drake is neither Louise's husband nor Henry's father. Beth is neither Cutler's wife nor Allan's mother. If Allan's father is either Cutler or Drake, then Louise is Victor's mother. If Louise is Cutler's wife, Dorothy is not Allan's mother. What is the name 01 each man's wife and son?

Mary is twenty-five. I am younger than Grace. Grace is twenty three. Helen is three years older than Grace. It is of course too much to expect that three young women should be entirely truthful when speaking of their ages, and in the present instance only two of the three statements made by each girl are true. Can you deduce the age 0/ each one? 51 Three men were once arrested for a crime which beyond a shadow of a doubt had been committed by one of them. Preliminary questioning disclosed the curious fact that one of the suspects was a highly respected judge, one just an average citizen, and one a notorious crook.

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