Identify the diagram that best represents the relationship among the given classes.

Human being, Doctors, Post­graduates

If a mirror is placed on the line MN, then which is the right image of the given figure?

Introducing a boy, Amarjeet says, "He is the son of the daughter of my father." How is boy related to the Amarjeet?

Karan travels 20 km towards the south, and then takes a left, and travels 35 km further. Again, he takes a left and travels 20 km further. How far is he from his original position?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?

j_l_jk_m_kl_

If "A" denotes "multiplied by", "C" denotes "subtracted from", "D" denotes "added to" and "B" denotes "divided by", then 76 C 54 D 210 B 3 A 15 = ?

Select the missing number from the given responses?

In a certain code language, "MOBILE" is written as "OQDKNG". How is "RANGER" written in that code language?