Verbal Reasoning - Mental Ability Questions

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

Superannuated

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Nightwalker

In the following question, select the odd letter/letters from the given alternatives

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

Mercury, Venus, Earth, ?

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

CD, XW, GH, TS, KL, ?

A man walks 5 kilometre towards South and then turns to the right. After walking 3 kilometre, he turns to the left and walks 5 kilometre. Now in which direction is he from the starting point?

In the morning X and Y are walking towards each other in a park. When they meet, Y's shadow falls upon X. In which direction was X facing?

If in a certain language, TOGGLE is coded as OTGGEL, how is KEPLER coded in that code?