A word has been given, followed by four other words, one of which cannot be formed by using the letters of the given word. Find that word.
ABDICATE
Date
Abate
Bead
Deaf
Solution
The first and the last digits are odd, hence the first and the last are coded as 'Z', 7 as 'T', 2 and 4 as 'A' and 'C' respectively, 5 as 'B'.
So we get: ZTACBZ