Light : Darkness:: Knowledge?

Identify the diagram that best represents the relationship among the given classes.
Brother, Husband, Men

Direction: In the following question, select the related letters from the given alternatives.
Energy: Joule :: Volume : ?

Which interchange of signs will make the following equation correct?
35 + 7 * 5 ÷ 5 - 6 = 24

In a row of students. Mohan is the 13^th from the left end. Suman is 12^th from Right end and 18^th from left end. How many students of Mohan’s right?

Direction: In the following question, select the related letters from the given alternatives. 

LMN : QPO :: OPQ:?

Two statements are followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they do not conform to real-word knowledge, decide which of the conclusion(s) logically follows from the statements.

Statements:

All ponds are pools

Some wells are ponds.

Conclusions;

I. Some ponds are not wells.

II. Some wells are pools

III. All pools are wells.