Logical Deduction Questions

Given below are two statements, followed by three conclusions, I, II and III. 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, support(s) the given statements.
Statement 1: All the books written by X are textbooks.
Statement 2: Some of his books are published by ABC Publishing Company.
Conclusion I: ABC Publishing Company publishes textbooks only.
Conclusion II: Some textbooks written by X are published by publishers other than ABC Publishing Company.
Conclusion III: ABC Publishing Company publishes some critical theories written by X.

A is $3$ years younger than C but one year older than D. D is one year older than B but $4$ years younger than C. C is $15$ years old. What is the age of B in years?

Direction: Study the given information carefully and answer the question that follows:
(i) A, B, C, D, E, F and G are sitting on a wall and all of them are facing east.
(ii) C is on the immediate right of D.
(iii) B is at an extreme end and has E as his neighbour.
(iv) G is between E and F.
(v) D is sitting third from the south end.

Which of the following pairs of people are sitting at the extreme ends?

It is observed that children of successful and well-to-do parents sometimes do not perform well in studies. Which one of the following alternatives offers a logical underlying reason behind it?

Direction: Study the given information carefully and answer the question that follows:
(i) A, B, C, D, E, F and G are sitting on a wall and all of them are facing east.
(ii) C is on the immediate right of D.
(iii) B is at an extreme end and has E as his neighbour.
(iv) G is between E and F.
(v) D is sitting third from the south end.

Who is sitting to the right of E?

Direction: Study the given information carefully and answer the question that follows:
(i) A, B, C, D, E, F and G are sitting on a wall and all of them are facing east.
(ii) C is on the immediate right of D.
(iii) B is at an extreme end and has E as his neighbour.
(iv) G is between E and F.
(v) D is sitting third from the south end.

Immediately between which of the following pairs of people is D sitting?

Consider the given statements and conclusions. Choose the option that logically follows from the statements.
Statements:

* No layer is a coat.
* All coats are deposits.
* All deposits are sheets.

Conclusions:
I. All coats are sheets.
II. All deposits can never be layer.