Verbal Reasoning - Mental Ability Questions

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

_BA_BBA_AB_B

Which of the following terms follows the trend of the given list? XYXYXYxy, XYXYXyxY, XYXYxyXY, XYXyxYXY, XYxyXYXY, _______________.

If X has two sisters - Y and Z, and W's mother is the sister of Y's father, then W is Z's ___.

Select the related word/letters/number from the given alternatives.
96 : 32:: 48 : ?

A girl is standing facing towards the east. She turns 45 degree in the anticlockwise direction and then turns 180 degree in the clockwise direction. Which direction is she facing now?

Select the related letters from the given alternatives.
EFG : VUT :: JIH : ?

If 15@7=44; 5@4=18; 6@17=46; then what is the value of 17@4=?

B is older than C but not as old as D. E is not as old as B. Who is the oldest of all?