Verbal Reasoning - Mental Ability Questions

Find the next number in the given series. 9, 11, 15, 17, 21, 23, ?

Five girls are sitting facing towards the north. Rekha is between Shalini and Neetu. Pooja is to the immediate right of Neetu and Shalini is to the immediate right of Neha. Who is sitting in the middle?

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

Which one set letters when sequentially placed at the gaps in the given letter series shall complete it?

M__OMMN__M__NOMMN__M

Select the related word/letters/number from the given alternatives.
ACE : HJL:: LNP : ?

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

LOP, MPQ, NQR, ORS, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
PON, LKJ, GFE, ?

Rajaram's son's sister's mother is Ramani. How is Ramani related to Rajaram?