12
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Disclaimer: This puzzle is from a university in Israel, computer science. Its in a real document written in Hebrew so no point in posting it. There is no link to it on the internet.

There is a couple that has been married for 10 years. It all started when the husband wrote this cipher to his wife.

91
21
62
62
21
23
63
61
32
82
71
33
63
73
21
23
63
33
33
32
32
?

The answer is supposed to be in English.

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  • $\begingroup$ There is no more context....a couple is married for 10 years, they met at a restaurant and the guy wrote to her this. I don't know the answer but this is the only context i got. $\endgroup$ – Deep_In_Tiger May 23 '19 at 0:41
  • $\begingroup$ Thanks for telling us about the source! Is this part of some sort of competition or challenge the university department is running? $\endgroup$ – Gareth McCaughan May 23 '19 at 1:23
  • $\begingroup$ Just something our lecturer gave us as a "bonus" assignment in a test (no points) but never revealed the answer to us. $\endgroup$ – Deep_In_Tiger May 23 '19 at 1:48
  • $\begingroup$ Has a correct answer been given? If so, please don't forget to $\color{green}{\checkmark \small\text{Accept}}$ it :) $\endgroup$ – Rubio Jun 1 '19 at 1:37
26
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So, here is the key to solve this:

enter image description here

The number $XY$ represents:

Pressing $X$ button $Y$ times.
For example, $91$ is W and $21$ is A.

So the answer is:

WANNA COME UP FOR A COFFEE?

| improve this answer | |
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  • 1
    $\begingroup$ That. Is. Impressive. $\endgroup$ – Brandon_J May 23 '19 at 17:18
  • $\begingroup$ Ya give that puzzle to your wife to solve, she will ban you from going for a coffee with her for entire life time! $\endgroup$ – user979189 May 23 '19 at 20:19

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