Verbal Reasoning - Mental Ability Questions

If ALPHA = 36, BETA = 26 then DELTA = ?

Introducing a woman, a boy says, "She is the wife of my grandfather's son". How is the woman related to the boy?

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

D, G, K, N, R, ?, ?, B, F

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

P_P_RPQ_S_Q_ST

Neeraj is facing north, then he turns 45 degree right and goes 25 m, then turns in south-east direction to move 25 m and from there 25 m to east. In which direction/place is he from his original place?

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

3,4,7,?,18,29,47

If, 6x4= 12, 4x12= 24, 12x6= 36 then 6x9= ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
49, 64, ?, 100, 121