In a certain code, 'abcd' is coded as 'abef'. What is 'ijkl' coded as?
Q1. In a certain code, 'abcd' is coded as 'abef'. What is 'ijkl' coded as?
Answer: ijmn
Explanation: The last two letters are replaced by the next two letters in the alphabet. 'cd' is replaced by 'ef', so 'kl' is replaced by 'mn'.