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Tanya's puzzle (Posted on 2016-05-10) Difficulty: 3 of 5
On April 16, 2015, Tanya Khovanova wrote in her blog:

Here is my new logic puzzle.
I thought of a positive integer that is below 100 and is divisible by 7. In addition to the public knowledge above, I privately tell the units digit of my number to Alice and the tens digit to Bob. Alice and Bob are very logical people, but their conversation might seem strange:

Alice: You do not know Tanya’s number.
Bob: I know Tanya’s number.

What is my number?

Please comment.

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (2 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionSolutionhoodat2016-06-28 04:43:30
ambiguityarmando2016-05-12 04:28:06
Some Thoughtsre(5): could beDej Mar2016-05-11 18:29:18
Some Thoughtsre(4): could beCharlie2016-05-11 07:32:24
Questionre(3): could beAdy TZIDON2016-05-10 21:51:33
re(2): could bearmando2016-05-10 16:23:45
Hints/Tipsre: could beAdy TZIDON2016-05-10 14:40:02
Some Thoughtscould beCharlie2016-05-10 14:00:22
Questionre: Not so maskedAdy TZIDON2016-05-10 13:39:37
Not so maskedarmando2016-05-10 12:53:37
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