Who will be A's mother's sister's sister's son's sister?

Identify the odd pair from the following.

Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.)
Movie: Director :: Orchestra: ?

Select the number from among the given options that can replace the question mark (?) in the following series

237, 196, 155, 114, ?

From the given alternative words, select the one which can/cannot be formed using the letters of the given word.

DETERIORATION

Direction : Read the following information carefully and answer the questions which follow .
Point W is 6 km towards the East of point X .  Point Y is 8 km North of point . X . Point Z is exactly midway between point Y and point X . Point A is  10 km to the South of point Z . Point B is 3 km towards the East of point Z . Point C is exactly mid way between point X and point W .

If a person walks 4 km towards the South from point B , takes a right turn and walks for another 3 km , which of the following points would he reach ? 

From the following, select the word which cannot be formed using the given word -

TEACHER

Direction (13-15): Study the following information to answer the given questions:
A building has seven floors numbered one to seven, in such a way that the ground floor is numbered one, the floor above it, number two and so on such that the topmost floor is numbered seven. One out of seven people viz. A, B, C, D, E, F and G lives on each floor. A lives on Fourth floor. E lives on the floor immediately below F’s floor. F does not live on the second or the seventh floor.
C does not live on an odd numbered floor. B does not live on a floor immediately above or below C’s floor. D does not live on the topmost floor. G does not live on any floor below E’s floor.

Who lives on the topmost floor?