Which letter-cluster will replace the question mark (?) to complete the given series?

DMT, JOB, PQJ, VSR, ?

In a certain code language, 'GREAT' is codedas '2015187', 'WORK' is codedas '11181523' and 'GOING' is codedas '7149157'. How will ‘WELL' be codedin that language?

Select the odd group of numbers. (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 /subtracting /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)

Option 

Select the letter that will replace the question mark (?) in the given letter series.
 a, d, h, n, ?

By interchanging the given two signs and numbers which of the following equation will be correct?
 × and +, 9 and 6

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

There are 10 members in the family who are sitting at some distance from each other in a park. N is 4 m in the west of M, who is 5 m in the north of O. Q is 12 m in the west of R. T is 3 m in the west of S, which is 12 m in the south of R. O is 6 m in the east of V, which is 2 m in the north of P, which is 8 m in the west of U. T is 1 m in the south of U.

What is the shortest distance between N and Q?

Which of the following terms will replace the question mark (?) in the given series?
 FOX  ?   JSX  LUX  NWX

What will come in the place of ‘?’ in the following equation, if ‘×’ and ‘ – ‘ are interchanged and also ‘+’ and ‘÷’ are interchanged?
 27 × 8 − 3 ÷ 4 + 2 = ?