शब्द 'INFORMATION' में अक्षरों के ऐसे कितने युग्म हैं (आगे और पीछे दोनों दिशाओं में) जिनके बीच उतने ही अक्षर हैं जितने कि अंग्रेजी वर्णमाला के क्रम में उनके बीच होते हैं?

Each vowel in the word (Left) GRAVITY (Right) is changed to the letter immediately following it in the English alphabetical order and each consonant is changed to the letter immediately preceding it in the English alphabetical order. Which of the following letters will be second from the right in the new group of letters thus formed?

Suppose the first and second letters of the English alphabet interchange their positions, the third and fourth interchange, and so on up to the end (Z). If all the vowels (A, E, I, O, U) are removed from this new arrangement, which letter will be third to the right of the eighth letter from the right end?