A and B are sisters .R and S are brothers . A'S daughter is R's sister. what is B's relation to S ?

A ,B,C,D and E are sitting on a bench . A is sitting next to B ,C is sitting next to D,D is not sitting with E,who is on the left end of the bench . C is on the second position from the right. A is on the right of B and E . A and C are sitting together . In which position is A sitting ?

A family has a man , his wife, their 4 sons and their wives. The family of every son also has 3 sons and daughter each . find out the total number of male members?
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aunts

between B & C

17(total sons in FAMILY was gives so give it a look again)