Verbal Reasoning - Mental Ability Questions

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

STM : RSL : : VSF : ?

Select the related word/letters/number from the given alternatives.

Doctor : Patient : : Shopkeeper : ?

In the following question, select the missing number from the given series.

42, 21, 21, ?, 63, 157.5

Select the related word/letters/number from the given alternatives.

6 : 48 : : 8 : ?.

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

TOK : UQN : : ROL  :  ?

Select the related word/letters/number from the given alternatives.

8 : 32: : 6 : ?

Select the related word/letters/number from the given alternatives.

LK : OP : : ? : UV

In the following question, select the related number from the given alternatives.

41 : 4 : : 37 : ?