In a certain code language, '123' means 'hot filtered coftee' ; '356' means 'very hot day' and '589' means 'day and night'. Which digit stands for 'very' ?
There are six persons A, B, C, D , E and F. C is the sister of F. B is the brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group.
How many male members are there in the group ?