Verbal Reasoning - Mental Ability Questions

In the following question, select the related number from the given alternatives.
3 : 27 : : 4 : ?

‘R + S’ means ‘R is mother of S’, ‘R – S’ means ‘R is wife of S’, ‘R × S’ means ‘R is son of S’ and ‘R ÷ S’ means ‘R is father of S’. Which of the followingrepresents K as the grandson of T?

In the following series, one letter is missing as shown by the ?. Select the missing letter from the given options.

Q, N, K, H, ?

In the following question, select the related letters from the given alternatives.
ELQZ : AJOV : : VXTD : ?

If 23 x 16 = 184, 37 x 10 = 185, then 85 x 12 = ?

Select the related word/letters/number from the given alternatives.
Donkey : Brays :: Monkey : ?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

WYV, ? , IKH, BDA

If I=9 and SLIP=56, then FALL= ?