Verbal Reasoning - Mental Ability Questions

Select the related letters from the given alternatives.
WVT : SRP :: MLJ : ?

If "A" denotes "added to", "C" denotes "divided by", "D" denotes "multiplied by" and "B" denotes "subtracted from", then
81 C 9 D 11 B 4 A 6 = ?

Pointing a man, Suraj says, "He is the son of the sister of my father's wife". How is that man related to Suraj?

P is S's mother's only son's wife. How is P related to S?

A boy leaves his school and travels 20 km towards the north. He takes a left turn and travels 30 km, then he turns towards the east direction and travels 50 km further. Finally, he turns to his right and travels 20 km more. Which direction is he now with respect to his school?

In a row of students, Ankit is 26th from the left end. Poonam is 18 ranks to the right of Ankit. If Poonam is 32nd from the right end, then what will be the rank of Ankit from the right end?

Looking at a lady, Joey said, "She is the mother of my mother's mother-in-law's husband". How is the lady related to Joey's father?

Select the related word from the given alternatives.
River : Stream :: Ocean : ?