Verbal Reasoning - Mental Ability Questions

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

LEGIBILITY

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

Gama rays, X­rays, Ultraviolet rays, ? , Infrared rays

In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.

6 ÷ 10 - 30 + 4 x 12 = ?

If GOAT can be written as KSEX, then WOLF can be written as ___

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
LOP, MPQ, NQR, ORS, ?

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

INTROSPECTION

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

NR, SW, WA, ZD, ?

Select the missing number from the given options?