Choose or find odd word - Engineer , Architect , Mechanic , Mason , Blacksmith

C. MECHANIC

Choose or find odd word - Kwashiorkor , Cretinism , Marasmus , Goitre , Osteomalacia

B. CRETINISM

Complete analogous pair - Man : Biography : : Nation : ?

D. HISTORY

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. E is lighter in weight than which of the other two articles ?

A. A, B

Choose or find odd number - 7 , 15 , 31 , 57

D. 57