A is the father of B, C is the daughter of B, D is the brother of B, E is the son of A. What is the relationship between C and E? 

A is father of B and C. B is the son of A. but c is not the son of A. How is Created to A? 

X and Y are brothers. R is the father of Y. S is the brother of T and maternal uncle of X. What is the T to R? 

M is the son of P. Q is the granddaughter of O who is the husband of P. How is M related to O? 

A letter series is given below in which some letter are missing. Select the  option that gives the letters that can fill these blanks in that order.
a_ca_bab_ad_abc_db

If 8 α 48, 12 α 120 and 15 α 195, then what is the value of ‘A’ in 19 α A?

If 9 θ 11 α 2 = 40 and 13 θ 12 α 3 = 75, then 40 θ 41 α 5 = ?

In the following question, correct the equation by interchanging two numbers.
9 × 3 – 8 ÷ 2 + 7 = 26