Choose or find odd word - Cliff , Canyon , Gulch , Gorge , Ravine

A. CLIFF

A blacksmith has five iron articles A, B, C, D and E, each having a different weight.
(i)  A weights twice as much as B.
(ii)  B weights four and a half times as much as C.
(iii)  C weights half as much as D.
(iv)  D weights half as much as E.
(v)  E weights less than A but more than C. Which of the following articles is the heaviest in weight ?

A. A

Pointing to a man on the stage, Rita said, "He is the brother of the daughter of the wife of my husband."
How is the man on the stage related to Rita ?

A. SON

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 ?

C. AUNT

In the following question, a group of letters is given which are numbered 1, 2, 3, 4, 5 and 6. Below are given four alternatives containing combinations of these numbers. Select that combination of numbers so that letters arranged accordingly, form a meaningful word. A  E  H  R  K  N
1  2  3  4  5  6

C. 3, 1, 6, 5, 2, 4