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

E. STAIN

Number of letters skipped in between adjacent letters in the series is in the order of 12, 22, 32.
Which of the following series observes the rule given above ?

A. CEJT

Select the most appropriate alternative as the answer. - You are living in the college hostel. The dal served to you in the mess has a lot of stones. What would you do ?

B. BRING THE MATTER TO THE NOTICE OF MESS INCHARGE.

 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