Both A and B are the children of X. Mr. B is A’s brother but A is not the brother of B. How is A related to B?

X and Y both are the children of Z. If Z is the mother of X and X is the son of Z, but Y is not the daughter of Z, How are X and Y related?

Read the following information carefully and answer the question given below.
 

X $-$ Y means X is the wife of Y.
X $+$ Y means X is the daughter of Y.
X $\times$ Y means X is the son of Y.
 

If A $\times$ B $-$ C, which of the following is true?

In the following questions,
X $-$Y means X is the wife of Y
X $+$ Y means X is the daughter of Y
X $\times$Y means X is the son of Y

Then for X$-$Y$\times$T$-$S, which of the following is not true?

Read the following information carefully and answer the question given below.

X $-$ Y means X is the wife of Y.
X $+$ Y means X is the daughter of Y.
X $\times$Y means X is the son of Y.

If P+Q-R$\times$S, then which of the following statement is correct?

There are six members in the family P, Q, R, S, T, U. Q is the son of R but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P and U is the brother of Q.
How many male members are there in the family?