In this type of questions, a series of single, pairs or groups of letters or combinations of letters and numerals are given. The terms of the series form a certain pattern as regards the position of the letter in the English alphabet. Find the missing or wrong term in series 

1)

Z, U, Q, ?, L


A) K

B) M

C) N

D) I

Answer:

Option C

Explanation:

$Z - 5 \rightarrow U, U - 4 \rightarrow Q, Q - 3 \rightarrow N, N - 2 \rightarrow L$

Hence the answer is (c).