Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group?
(Note: The odd man out is not based on the number of consonants/vowels or their position in the letter-cluster.)

Logic: Pattern are +14, -12 in English alphabet.

Let's check all options:

Option (a): UIW
U + 14 = I
I - 12= W
​Option (b): LZN
L + 14 = Z
Z - 12 = N
​Option (c): KYM
K + 14 = Y
Y - 12 = M
​Option (d): HUJ  (Pattern not Follow)
H + 13 = U
U - 11 = J

Odd One Out: Option (d) HUJ does not follow the same logic as other options follow to making it  odd one out.

Thus, the correct option is (d) HUJ.