Verbal Reasoning - Mental Ability Questions

From the given alternative words, select the word which cannot be formed using the letters of the given word:

EXORBITANT

If 75$26 = 4, 69$53 = 7 then what is the value of 82$46 = ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

RST, XYZ, DEF, ?

Choose the related word/letters/number from the given alternatives. CD : 916 : : ? : 100144

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Headstrong

Arrange the given words in the sequence in which they occur in the dictionary.
1. Exacts
2. Exotic
3. Exactly
4. Exacerbate
5. Exhaust

In the question, a word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A from these matrices can be represented first by its row and next by its column. e.g. 'O' can be represented by 65, 88 etc. and 'F' can be represented by 13, 42, etc. You have to identify the set for the word ‘NAVY’.

If '←' stands for '+', '→' stands for '-', '↑' stands for '÷', '↓' stands for 'x', '^' stands for '=', then which of the following alternatives is correct?