Raj introducing a girl that she is the wife of my sister’s father’s only son then how is that girl related to the Raj?

Which letter set will come in place of question mark (?) in the following series?
LOK, PQP, VSV, DUC, ?

In a certain code language, if EXTRANET is coded as 9*416394 and TECHNOLOGY is coded as 492735850#, then TOLERANCE will be coded as? 

Brick : Mason :: Colour : ? 

Pointing to a woman in a photograph a man says " she is the only daughter of my wife's mother - in - laws" How is the woman related to the man?

Direction: In each of the following questions, four words have been given, out of which three are alike in some manner and the fourth one is different. Choose out the odd one.

Direction: In each of the following questions, three statements are given followed by two conclusions I, and II. You have to consider the statements to be true even if they seem to be at variance from commonly /known facts. You have to decide which of the given conclusions, if any, follow from the given statements.

Statements:

I. Some L are D. 

II. No D is A.

III. All A are F. 

Conclusions: 

I. All D are L.

II. Some F are not D.