Choose or find odd word - Physics , Chemistry , Geography , Botany , Zoology

C. GEOGRAPHY

If A + B means A is the mother of B ;
A / B means A is the brother of B ;
A x B means A is the son of B  and
A - B means A is the daughter of B,
which of the following means C is the niece of D ?

C. C - P / D

Choose or find odd word - Peak , Mountain , Hillock , Mound , Valley

E. VALLEY

In a certain code, 'ile be pee' means 'roses are blue'; 'sik hee' means 'red flowers' and 'pee mit hee' means 'flowers are vegetables'. How is 'red' written in that code ?

B. SIK

There are five men A, B, C, D and E and six women P, Q, R, S, T and U, A, B and R advocates;
C, D, P, Q and S are doctors and the rest are teachers. Some terms are to be selected from amongst these eleven persons subject to the following condition :
A, P and U have to be together.
B cannot go with D or R.
E and Q have to be together.
C and T have to be together.
D and P cannot go together.
C cannot go with Q. If the term  is to consist of one advocate, two doctors, three teachers and C may not go with T, the members of the team are :  

B. A E P Q T U