Four of the following five are alike in a certain way so form a group. Which is the one that does not belong to that group? 

Find the missing number?
1, 2, 4, 6, 10, 12, ____

Directions: Read the following information carefully and answer the questions given beside.
G is the mother of F, who is the spouse of D. M is the daughter of D, who is the only brother of C. E is the son of G, who is married to H. A is the niece of C, who has no sister. T is the father of D and has no daughter. V is the sister-in-law of F.  G has only two children. M is the granddaughter of O.

How many female members are there in the family?

212 : 436 : 560 : ?

If 1 is added to each even digit and 2 is subtracted from each prime digit in the number 73384563, then what is the sum of digits which is 4th and 6th from left and right respectively?

Radhika went 50 metres south from her house then turned left and went 20 metres then turning , to north she went 30 metres. In which direction is her home from this point? 

In a row of students, Mohan is 9th from left end and Pooja is 10th from right end. Neha sits exactly between them. Find the minimum strength of the row?

In the class of boys and girls, the rank of Obama is15th and the rank of Shabana is 8th.The rank of Obama is 8th only in boys and Shabana’s rank is 4th only in girls. In the boys and girls, Obama’s rank is 18th from other side. Shabana’s rank is 7th only in girls from other end. Then find the total number of boys in the class.