Choose or find odd number - 27 , 125 , 343 , 729 , 1321

E. 1321

If (x + 1/x) = 4, then (x41/x4) is equal to :

B. 194

(i). P, Q, R, S, T and U are six students procuring their Master's degree in six different subjects -- English, History, Philosophy, Physics, Statistics and Mathematics.
(ii). Two of them stay in hoste, two stay as paying guest (PG) and the remaining two stay at their home.
(iii). R does not stay as PG and studies Philosophy.
(iv). The students studying Statistics and History do not stay as PG.
(v). T studies Mathematics and S studies Physics.
(vi). U and S stay in hostel. T stays as PG and Q stays at home. Which of the following pairs of students stay at home ?

B. QR

Complete analogous pair - Funk : Vitamins : : Curie : ?

B. RADIUM

Choose or find odd pair of words - (Atom : Electron) , (Train : Engine) , (House : Room) , (Scooter : Gears) , (Curd : Milk)

A. CURD : MILK