Choose or find odd word - Mercury , Acetone , Petrol , Kerosene

A. MERCURY

Rita told Mani, "The girl I met yesterday at thebeach was the youngest daughter of the brother-in-law of my friend's mother."
How is the girl related to Rita's friend ?

A. COUSIN

Complete analogous pair - Professor : Lecture : : Doctor : ?

C. MEDICINE

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.
? 13 49
9 17 69
13 11 59

A. 5

Choose or find odd pair of words - (Profit : Loss) , (Wise : Foolish) , (Virtue : Vice) , (Seduce : Attract)

D. SEDUCE : ATTRACT