Choose or find odd number pair - (2 - 8) , (3 - 27) , (4 - 32) , (5 - 125)

C. 4 - 32

Assertion (A) : Increase in carbon dioxide would melt polar ice.
Reason (R) : Global temperature would rise.

A. BOTH A AND R ARE TRUE AND R IS THE CORRECT EXPLANATION OF A.

Choose or find odd word - Snake , Whale , Crocodile , Lizard

B. WHALE

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
18 24 32
12 14 16
3 ? 4
72 112 128

B. 3

B is twice as old as A but twice younger than F.
C is half the age of A but twice the age of D.
Which two persons from the pair of oldest and youngest ? 

B. F AND D