Verbal Reasoning - Mental Ability Questions

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. Choose the correct alternative from the given ones that will complete the series.

B, D, H, P, ?

X and Y start from the same point. X walks 40 m north, then turns West and walks 80 m, then turns to his right and walks 50 m. At the same time, Y walks 90 m North. Where is Y now with respect to the position of X?

What number should come in place of ?

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 70$7 = -10, 50$5 = -10 and 40$8 = -5, then find the value of 10$2 = ?

Select the related word/letters/number from the given alternatives.
34 : 81 : : 23 : ?

A man is facing west and he turns anti-clockwise by 90 degrees and moves 10m straight, then he again turns 90 degrees anti-clockwise. Which direction is the man facing now?