Verbal Reasoning - Mental Ability Questions

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

NOS : PQU : : KLP : ?

Find the missing number in the given number series?

1 8 36 ? 1100 7701

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

KPV : LQW : : BOY : ?

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

DFI : IKN : : NPS : ?

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

ACD : ZXW : : PMN : ?

If train is called bus, bus is called tractor, tractor is called car, car is called scooter, scooter is called bicycle, bicycle is called moped, which is used to plough a field ?

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

NP : HJ : : SY : ?

If "A" means "subtraction", "B" means "division", "C" means "addition" and "D" means "multiplication", then

411 B 3 A 29 C 53 D 20 = ?