Choose or find odd pair of words - (Jupiter : Planet) , (Musician : Artist) , (Merchant : Business) , (Maize : Cereal)

C. MERCHANT : BUSINESS

Pointing to a photograph, a lady tells Pramod, "I am the only daughter of this lady and her son is your maternal uncle." How is the speaker related to Pramod`s father ?

B. WIFE

Choose or find odd pair of words - (Oil : Lamp) , (Water : Tap) , (Oxygen : Life) , (Power : Machine)

B. WATER : TAP

In a certain code, 15789 is written as AXBTC, 2346 is written as MPDU. How is 23549 written in that code ?

D. MPXDC

In following questions, one term in number series is incorrect. - Find out the incorrect number 1, 3, 7, 15, 27, 63, 127

C. 27