Verbal Reasoning - Mental Ability Questions

Consider the following information and answer the questions based on it.

Out of the 75 birders, 15 wanted to see only sunbird, 10 wanted to see only flycatcher, 12 wanted to see both sunbird and nuthatch, 15 wanted to see only bee-eater, 13 wanted to see both sunbird and bee-eater, 5 wanted to see both flycatcher and nuthatch and the remaining wanted to see only nuthatch.

How many birders wanted to see only one bird?

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

Brass, Bronze, Alloy

If the positions of the fifth and twelfth letters of the word 'GLORIFICATIONS' are interchanged; and likewise the position of the fourth and fourteenth letters, the third and tenth letters, the second and eleventh letters and the first and thirteenth letters are interchanged, which of the following will be twelfth letter from the right end ?

A scenery always has ________

The sum of the interior angles of a polygon is twice the sum of its exterior angles. How many sides does the polygon have ?

In certain code, TOGETHER is written as TCJRGEQR. In the same code JOINING will be written as?

Identify the diagram that best represents the relationship among classes given below:

Universe,Stars,Sun

Choose the missing terms out of the given alternatives T, R, P, N, L, ?, ?