Verbal Reasoning - Mental Ability Questions

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

_n_p_no_m_ _p

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

HOT, GMQ, FKN, EIK, ?

Find the missing term in the following question:-

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

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

Bit, Byte, Kilobyte, Megabyte, ?

To attend an exam, Sudhir reached the school by travelling 5 km towards South, and after a sharp left turn, he travelled for about 10 km. He again made a sharp left turn and reached in front of the school by travelling 5 km more. Which direction is Sudhir's starting point from the school?

Vijey walks 10 meters westward, then turns left and walks 10 meters. He then again turns left and walks 10 meters. He takes a 45 degree turn rightwards and walks straight. In which direction is he walking now?

Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words.

knot: Watt: Fathom