Choose or find odd letter group - RTW , QOM , IKG , IKM , BDF

A. RTW

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. - QPO, SRQ, UTS, WVU, ?

C. YXW

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - _ baa _ aab _ a _ a

C. ABAB

If GO = 32, SHE = 49, then SOME will be equal to

A. 56

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
Z4 X3 V9
A6 C2 ?
T5 R4 P15

B. E12