Naresh lives in a street with house-numbers 9 up to 100. Anitha wants to know at which number Varun lives.
She asks him: "Is your number larger than 50?"
Naresh answers, but lies.
Upon this, Anitha asks: "Is your number a multiple of 4?"
Naresh answers, but lies again.
Then Anitha asks: "Is your number a square?"
Naresh answers truthfully.
Upon this, Anitha says: "I know your number if you tell me whether the first digit is a 3."
Naresh answers, but now we do not know whether he lies or speaks the truth.
Anitha says at which number she thinks Naresh lives, but (of course) she is wrong.
What is Naresh real house-number?
She asks him: "Is your number larger than 50?"
Naresh answers, but lies.
Upon this, Anitha asks: "Is your number a multiple of 4?"
Naresh answers, but lies again.
Then Anitha asks: "Is your number a square?"
Naresh answers truthfully.
Upon this, Anitha says: "I know your number if you tell me whether the first digit is a 3."
Naresh answers, but now we do not know whether he lies or speaks the truth.
Anitha says at which number she thinks Naresh lives, but (of course) she is wrong.
What is Naresh real house-number?
Watch this space for answer in a week.
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