Select the number from among the given options that can replace the question mark (?) in the following series.
 121, 144, 169, ?, 225, 256 

Direction: Study the following information carefully and answer the given questions.

Six persons P, Q, R, S, T, and U are living in a three-storey building such that ground floor is numbered as 1, above it is floor 2 then top floor is numbered as 3. Each of the floor has 2 flats in it as flat-X and flat-Y. FlatX of floor-2 is immediately above flat-X of floor-1 and immediately below flat-X of floor-3. In the same way flat-Y of floor-2 is immediately above flat-Y of floor-1 and immediately below flat-Y of floor-3. Flat-X is in west of flat-Y. They all are from different cities.

The one who is from Kolkata lives immediately above U. S lives to the west of U. P and the one who is from Kolkata do not live on the same floor. Neither S nor Q is from Bangalore. U is either from Pune or from Agra. There is one floor between Q and the one who is from Delhi who lives above Q. T does not live in flat Y. The one who is from Mumbai lives on the same floor on which the one who is from Agra lives. P lives on an odd numbered floor in flat X.

Which of the following combination is the correct?

Select the option that is related to the fifth letter-cluster in the same way as the second letter cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.
GAP : EYN :: MAD : KYB :: FILE : ?

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
 57 * 35 * 44 * 11 * 13 *74

Directions: Study the lowing information to answer the given questions

S, T, U, V, W, X, Y and Z are sitting in a straight line equidistant from each other (but not necessarily in the same order). Some of them are facing south while some are facing north.

(Note: Facing the same direction means, if one is facing north then the other also faces north and vice-versa. Facing the opposite directions means, if one is facing north then the other faces south and vice-versa)

S faces north. Only two people sit to the right of S. T sits third to the left of S. Only one person sits between T and X. X sits to the immediate right of W. Only one person sits between W and Z. Both the immediate neighbors of T face the same direction. U sits third to the left of X. T faces the opposite direction as S. Y does not sit at any of the extremes ends of the line. V faces the same direction as W. Both Y and U face the opposite direction of Z.

What is the position of X with respect to Z?

Which two signs should be interchanged to make the given equation correct?
 48 ÷ 12 × 3 + 5 − 4 = 21

Direction: Study the following information carefully and answer the questions given below.

Point Y is 3m to the north of point J and 5m to the east of point E. Point C is 9m to the north of point N which is 11m to the east of point J. Point M is 10m to the west of point C and 5m to the south of point S, which is 15m to the west of point B. Point F is 8m to the south of point B.

In which of the following direction is point S with respect to point C?

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /deleting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(3, 6, 18) (5, 7, 35)