Choose or find odd word - Sweep , Wipe , Scrub , Wash , Stain

E. STAIN

Choose or find odd pair of words - (Aphid : Paper) , (Moth : Wool) , (Termite : Wood) , (Locust : Plant)

A. APHID : PAPER

Choose or find odd pair of words - (Saw : Wood) , (Pen : Paper) , (Author : Book) , (Chalk : Blackboard)

C. AUTHOR : BOOK

 A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is his average speed for the both the trips? 

B. 48 KMPH