Verbal Reasoning - Mental Ability Questions

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

HFZ : LJD : : ? : ?

Find the next term in the series

X, V, T, R, P, ?

Find the first negative term of the below A.P.

129, 120, 111, 102, ...

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

CEG : IKM : : FHJ : ?

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

House : Servant : : ? : ?

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

Tie : Neck : : ? : ?

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

64 : 10 : : 94 : ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

90 ÷ 10 + 5 - 6 x 4 = 28