Verbal Reasoning - Mental Ability Questions

In a family, there are six members A, B, C, D, E and F. 

A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is F related to C ? 

Select the related word/letters/number from the given alternatives.

Jammu and Kashmir : North : : Tamil Nadu : ?

# 6 B G @ I L 7 3 H A % @ D F K E 8 J Q I * V T U 2 $ W

If all the numbers are dropped from the above arrangement which element will be fifth to the left of eleventh from the left?

What is to be replaced in place of '?' in the following series ?

 A2BC, ?, ABC4, A5BC

A) A3BC

B) ABC3

C) AB3C

D) A2B3C4

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

CEG : IKM : : FHJ : ?

Select the related number from the given alternatives.

6 : -3 :: -18 : ?

If

4x9=25
7x4=53

then

9x4=?

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

Start : End : : ? : ?