1.  Questions : In a certain code, 'XYZ' means 'we are friend'. Which letter stands for 'We' ?
Statements : 

I.   'PYN' means 'They are classmates'.
II.  'ZMS' means 'We love them'
III. 'PX' means 'Hello friends'

A. Only II
B. Only I and III
C. All I, II and III
D. Either I only or II only
E. None of these

Answer: Option E

Explanation:

To find the code for 'we ', we need to have any of the following :

(i) 'We are friends' should have only 'We' common with another statement, as in II;

(ii) 'We are friends' should have only 'are' and 'friends' common with another single or two statements, as in I and III.

Thus, we need Either II only or I and III only.