**Tricky Logical Puzzle - 26 January**

I have one of the three numbers: 1, 2 or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number ?

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can you all be multiplied by the number one and still stay the same number?

ReplyDeleteWill subtracting 2 from your number give a negative number? P.s 0 is neither negative nor positive.

ReplyDeleteif you have 1 in your mind please say yes, if 2 please no, or if 3 please say i dont know :)

ReplyDeleteClever. But I think it is not a question :)

DeleteI am thinking of 1 or 2 - is your number bigger than mine?. If 3 the answer is yes, if 1 the answer is no, if 2 the answer is I do not know

ReplyDeleteIs it a prime number other than 1???

ReplyDeleteIs your number greater than 2? Simple.

ReplyDeleteIn this case he would answer "No" for both 1 or 2, and answer "Yes" for 3. It won't give you the solution if he chose 1 or 2.

Deleteques can be is the number a prime no.?

ReplyDeleteif he says yes->its 3,

no->2

dont know->1

3 is prime, and 2 is also prime. 1 is not a prime number. Your solution isn't working.

DeleteSubtract your number by 2 and divide by zero will give you positive number?

ReplyDelete3 is positive infinity

2 0/0 indeterminate

1 will give negitive infinity

Anything divided by zero is zero.

DeleteSolution:

ReplyDeleteYou will ask, I am thinking of a number from 2 and 3. Is the number I am thinking of smaller than or equal to the number you have in your mind?

Now, if I reply no, then the number is 1.

If I reply yes, then the number is 3.

If I reply don't know, then the number is 2.

'If I reply yes, then number is 3.' The number can also be 2 right ? because if I am thinking 2 or 3, it can still be equal to 2 ( a number i am thinking) ?

Does the number in your mind come before 2?

ReplyDeleteDoes the number in your mind come before 2?

ReplyDelete