Benevolent : Kind : : Unclear :

Correct Answer: Nymph

Explanation:

Second is the young - one of first.

Correct Answer: Rigid

Explanation:

'Alleviate' means 'to Reduce ' and 'Aggravate' means 'to intensify'. So, it is a clear opposite analogy and it is similar to 'Elastic' and 'Rigid' which are mutually opposite.

Correct Answer: Soil

Explanation:

'Mycology' is the study of 'Fungi', in the same way 'Pedology' is the study of 'Soil'.

Correct Answer: 'Ram is for 'Ewe'

Explanation:

A' Stallion' is a male-horse while a 'More ' is a female horse
Therefore, the relationship is male : Female. In options (a), (c) and (d) this relationship is inverted. In option (b) 'Ram', a male sheep, proceeds 'ewe' a female sheep.

Correct Answer: Vulpine' is for 'fox'

Explanation:

'Asinine' means 'foolish' ; or like a donkey, similarly 'Vulpine' means 'Cunning' or resembling a 'fox' . 'Avian' means 'of or pertaining to birds' in general, and not specifically doves. Hence, the correct answer is option (a).

Correct Answer: 1/169

Explanation:

As, (1/9)² = 1/81
Similarly, (1/13)² = 1/169

Correct Answer: 635

Explanation:

As, 25 : 625 ? 25 is common in both and 6 is added before it.
Similarly, 35 : 635 ? 35 is common in both and 6 is added before it.

Correct Answer: 30

Explanation:

As, 1234 : 10
1 + 2 + 3 + 4 = 10
Similarly, 6789 : 30
6 + 7 + 8 + 9 = 30

Correct Answer: 6

Explanation:

As, 66 - 2 = 64 ? ? 64 = 8
Similarly, 38 - 2 = 36 ? ? 36 = 6

Correct Answer: 378

Explanation:

Taking option (c),
As sum of digits of 583 = 5 + 8 + 3 + = 16
and sum of digits of 488 = 4 + 8 + 8 = 20
Similarly, sum of digits of 293 + 2 + 9 + 3 = 14
and Sum of digits of 378 = 3 + 7 + 8 = 18
Here, difference of both are (20 - 16) = (18 - 14) = 4
? ? = 378