Verbal Reasoning - Mental Ability Questions

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.
Statement:
Z < L < W = N = K < A
Conclusion:
I. A > L
II. Z = A

Select the missing numbers from the given alternatives.

Select the missing number from the given responses?

In the following question, select the related letter from the given alternatives.
DE : O : : AF : ?

Select the missing numbers from the given alternatives

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

7, 49, 343, ?

In the following question, select the related letter pair from the given alternatives. MOK : KLG : : ? : ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

GX, JU, MR, PO, ?