Pick the odd one out:

While introducing a girl in a party, Ramesh said, " she is the daughter- in- law of the only son of my father" How is Ramesh related to the girl ?

'DOCTOR' is related to 'PATIENT' in the sense as 'PUPIL' is related to : Find the correct word from the following :

If 'BANK'iS coded as 'CAMP' in a language, how is 'RAMP'coded in that language ?

What is the simple interest on Rs.8000 at 8% per annum ?

If 5x - 3x = 2x2/7 Find x .