Which type of power plant produces electricity by harnessing the energy of falling or flowing water?

Which of the following pair of boxes were placed at the bottommost position?

C lives on which of the following floor?

Who among the following likes to White? 

What is the age of the person who works for hindustan?

If A is related Levis, C is related to Fila Shoes, in the same way E is related to which of the following?

Which among the following pair of people stays on same floor?

Which of the following is the third tallest among the other students?

How many persons attend seminar between F and M?

Who among the following are girls?

Who among the following person lives immediate above flat of O?