Verbal Reasoning - Mental Ability Questions

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

DM, EN, FO, ?

Teacher is related to Class in the same way Driver is related to

Select the related word/letters/number from the given alternatives.
25: 260 : : 30 : ?

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

AB, BC, CD, DE, EF ?

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Only first division holders are admitted.
(II) Ram is a first division holder.

Conclusions:
(I) Ram is admitted.
(II) Only Ram is admitted.

Select the number which can be placed at the place of ? in the following question

In the following question, select the missing number from the given series.672, 666, 660, 654, ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
49, 64, ?, 100, 121