Pick an odd number in the given number series?

4 12 38 87 198

If A = 1 and ANT = 105, then ASK =?

Conditions;
(A) There are six members in a family – A, B, C, D, E & F, including two married couples.
(B) Two of them are doctors, one is a teacher, one is a clerk & two are the artists. Both the doctors are of same gender.
(C) A & C are in the same profession.
(D) Teacher is married to a doctor & an artist is married to clerk.
(E) A is an artist & E is male doctor. Both are unmarried.
(F) F is a husband of B.
What is the profession of B?

If in a code language “PLAYER” is written as “AELPRY”. Then in the same language “MANAGER” will be written as ________?  

A man is 3 years older than his wife and four times as old as his son. If the son becomes 15 years old after 3 years, what is the present age of the wife? 

Mohan starts from point A and walks 1 km towards south, turns left and walks 1 km. Then turns left again and walks 1 km. Now which direction he is facing? 

In the expression P × Q -T how is T related to P? 

A paper is folded and cut as shown below. How will it appear when unfolded?