The family has a man, his wife, their Four Sons and their wives. The family of every son also has 3 son and 1 daughter. Find out the total number of male member in the whole family.

17

The family has a man, his wife, their Four Sons and their wives.

=> +1, +4 = 5 male till now.

The family of every son also has 3 son and 1 daughter;

=> 4x3 = 12 male

Thus, the total male are 5 + 12 => 17.