Y lives on 7th floor. Two person live between Y and Z. S live immediately above Z. There is as many person living living above S as below Q. 
There is no floor empty for Q in CASE2 so CASE2 is cancelled out. P live above X. Five persons live between X and C, who lives below Y. 
Who served as a court poet during the reign of Emperor Samudragupta?
The Mongols appeared for the first time on the banks of the Indus during the rule of
During which ruler's reign did Pietra dura, the art of inlaying colored stones into marble, gain popularity?
What was the reign of only woman ruler in the history of Medieval India?
Who was the father of Mughal Emperor Aurangzeb?
Which king was the patron of the renowned poet Kalidasa?
Akbar granted the present site of Amritsar to the Sikh Guru
The Chief of Army during the Mughal administration was known as :
Who was the mother of Samudragupta, the renowned emperor of the Gupta Empire?
Who constructed the famous Martand Sun Temple in Kashmir?
