In the following question, select the odd letter/letters from the given alternatives.

A)
GK
B)
FJ
C)
DG
D)
SW

Correct Answer : Option (C) - DG

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Q .
In the following question :
Various terms of an alphanumerical series are given with one or more terms missing as shown by (?). 
Choose the missing terms out of the given alternatives. BMO, EOQ, HQS, ?
A)
SOV
B)
LMN
C)
KSU
D)
SOW

Correct Answer :   KSU

Explanation : The first letter moves 3 steps forward. The second and third letters move 2 steps forward.

Q .
What should come in place of the question mark (?) in the following number series? 8, 6, 9, 23, ?
A)
35
B)
49
C)
62
D)
87

Correct Answer :   87

Explanation :

Given number 8, 6, 9, 23, ?
 
The pattern of given series is :
8 x 1 - 2 = 6 6 x 2 - 3 = 9 9 x3 - 4 = 23 23 x4 - 5 = 87