It is a well-known fact that
eleven+two=twelve+one
is an anagram equality
and
1 + 12 = 2 + 11
may be viewed as a palindrome.

After solving two independent alphametics:
(i). two*one=pigeon
and
(ii). twelve-eleven=equal

use your head to assign a digit to the ? in this puzzle's title,
to make 027 028?9
a meaningful expression.

Sorry-

Somehow an error in the text occurred:

<b>  w  a  t  c  h    o  u  t  !  </b>

the "meaningful expression " should be derived from 
<b>027 028?8</b><p>

Now, please correct the typo and go on!

Posted by Ady TZIDON on 2017-04-06 10:15:52