In decipher jumbled up description type of questions, a round-about description is given in the form of certain small relationships and direct relationship between the persons concerned is to be deciphered.
Pointing to the lady on the platform, Manju said, "She is the sister of the father of my mother's son."
Who is the lady to Manju ?
Manju's mother's son -- Manju's brother;
Manju's brother's father -- Manju's father;
Father's sister -- Manju's aunt.