___________ is also known as protocol

How is Gaurav related to Preeti?

I. Shekhar and Gaurav are the two sons of Raj and Preeti is the daughter of Shekhar.

What is Teena’s rank from the top in the class?

Statement I:Teena’s rank is exactly between Harish’s and Shobhit’s rank. 

Six persons, P through U are of different ages. Who is the oldest person?

Among buildings P, Q, R, S, T and U (each building is of different height), which of the tallest?

Do the points P, Q and R lie in a straight line?

Who is brother in law of Y?

I. Y is mother of Z and is married to the brother of A, who is female.

II. V and X are brothers of A. U is wife of X.

Seven boxes viz. J, K, L, M, N, O and P are kept one above other. How many boxes are kept below box P?

Which direction Mita is facing?

Statement I:  Mita started walking from point P.

Statement II: She took two consecutive right turns.

There are seven members in a family. Who is the father-in-law of F?