Statements: Some participants are students.
                    Some students are boys.
Conclusions I. No boy is a participant.
                    II. All boys are participants.

Statements: All laptops are computers
                    Some laptops are notebooks.
Conclusions I. Some notebook are computers
                    II. All notebooks are computers.

Statements: All rows are lines
                     All lines are queues.
Conclusions
                   I. All rows are queues.
                   II. Atleast some queues are lines.

In the question below, two statements are given followed by two conclusions numbered I and II. You have to take the two statements to be true even if they seem to be variance from the commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding the commonly known facts.
Statements: Some rings are circles.
                    No circle is a square.
Conclusion I. No ring is a square.
                   II. All rings are squares.

In this question relationships between different elements are shown in the statements. These statements are followed by two conclusions.
Statements D˂E˂F˂G
                    K˃F
Conclusion I. K≤G
                   II. K˃D

What will come in place of the question mark (?) in each of the following series?

6 13 38 ? 532 2675 

What will come in place of the question mark (?) in each of the following series?

3 22 ? 673 2696 8093 

What will come in place of the question mark (?) in each of the following series?

17 52 158 477 ? 4310