Verbal Reasoning - Mental Ability Questions

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

15, 7.5, 7.5, ?, 22.5, 56.25

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

DFG : EGH : : PRS : ?

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

9 : 81 : : 8 : ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

18 + 26 - 25 x 10 ÷ 5 = 42

In a certain code, TRIPPLE is written as SQHOOKD. How is EXOTIC coded in that code?

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

SRM : IHC : : ZUQ : ?

In the following question, select the related word pair from the given alternatives.

Tie : Neck : : ? : ?

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

LJK : IGH : : PST : ?