Verbal Reasoning - Mental Ability Questions

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Preparation

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

x_za_yza_xy_aa_

The weights of 4 boxes are 20, 40, 80 and 90 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

In the following question, select the odd word pair from the given alternatives

One or two statements are given followed by two or more conclusions/assumptions, I, II, III, IV. You have to consider the statement to be true, even if it seems to be at variance from commonly known facts. You are to decide which of the given conclusions/assumptions can definitely be drawn from the given statement.

Statement:
1. All goats are tigers.
2. All tigers are lions.

Conclusion:
I. All tigers are goats.
II. All lions are tigers.
III. No goat is a lion.
IV. No lion is a goat.

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

Gama rays, X­rays, Ultraviolet rays, ? , Infrared rays

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

AN, EQ, IT, MW, ?

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

RFT, QDQ, PBN, OZK, ?