In a certain code language NATIONALISM is written as OINTANMSAIL. How is DEPARTMENTS written in that code?

In a certain code language OUTCOME is written as OQWWEQOE. How is REFRACT written in that code?

If αδγηε is coded as ‘ARGUE’ and σφλπε is SOLVE, What is παγηελω is ?

If D becomes H, E becomes J and G becomes N, what will K become in English alphabet?

If the first and second letters in the word ‘COMMUNICATIONS’ were interchanged, also the 3rd and the 4th letters, the 5th and 6th letters and so on, which letter would be the 10th letter counting from your right?

Using the following code and key, decode the given coded word:
Code : L X P Z J Y Q M N B
...Key : b a e s p r h i g t
Coded word : Z B Y X M N Q B 

Gopal started walking 2 km straight from his school. Then he turned right and walked 1 km. Again he turned right and walked 1 km to reach his house. If his house is south-east from his school, then in which direction did Gopal start walking from the school?

A man starts from a point, walks 4 miles towards north and turns left and walks 6 miles, turns right and walks for 3 miles and again turns right and walks 4 miles and takes rest for 30 minutes. He gets up and walks straight 2 miles in the same direction and turns right and walks one mile. What is the direction he is facing?

Arun started from point A and walked 10 kms East to point B, then turned to North and walked 3 kms to point C and then turned West and walked 12 kms to point D, then again turned South and walked 3 kms to point E. In which direction is he from his starting point?

A man starts from a point, walks 2 km towards north, turns towards his right and walks 2 km, turns right again and walks. What is the direction now he is facing?