In a certain code language, ‘RACE’ is written as ‘AREC’, and ‘PEAK’ is written as ‘EPKA’. How will ‘CORE’ be written in that language?

Find the missing number?

192, 021, 222, 324, 252, 627, 2_, 9_?

3, 18, 48, 93……….?............

Select the word-pair in which the two words are related in the same way as the two words in the following word-pair.

School: Student::____:___

A word is represented by only one set of numbers, such that one of the alternatives is given. The number-groups given in the alternatives are represented by squares of letters, as in the two matrices given below. The number of columns and rows of matrix I is given from 0 to 4, and from 5 to 9 of matrix II, a letter from these matrices can be represented first by its row and later by the column number. For example, 'D' can be represented by 04,12 etc. and 'I' can be represented by 65,79. Similarly, you have to identify the group for the given word 'BANK'.

Which of the following numbers will replace the question mark (?) in the given series?

27, 29, ?, 182, 730, 3652

Study the given pattern carefully and select the number that can replace the question mark (?) in it.
 First row: 73, 52, 75
 Second row:64, 41, 63
 Third row: 68, 47, ?

(NOTE: Operations should be performed on the whole numbers, without breaking down the number into its constituent digits. For example, 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.)