In substitution type of questions, some particular objects are assigned code names. Then a question is asked that is to be answered in the code language.

If sky is called sea, sea is called water, water is called air, air is called cloud and cloud is called river, then what do we drink when thirsty ?

A. Sky
B. Air
C. Water
D. Sea
E. Cloud
Answer: B . Air


One drinks 'water' when thirsty and as given, 'water' is called 'air'.