If every letter in the word IMAGINATION is changed to the next letter in the English alphabetical order and the letters of the new word are arranged in alphabetical order, which letter will be the sixth from the left end of the new word thus formed?

Note: The new word formed after performing the mentioned operations may not necessarily be a meaningful English word.​​

Each letter in the word DUMPERS is arranged in the English alphabetical order. How many letters are there in the English alphabetical order between the letter which is fourth from the left end and the one which is second from the right end in the new letter-cluster thus formed?

Each letter in the word INJURED is arranged in the English alphabetical order. How many letters are there in the English alphabetical order between the letter which is second from the left end and the one which is fourth from the right end in the new letter-cluster thus formed?

The position(s) of how many letters will remain unchanged if each of the letters in the word ARMCHAIR is arranged in the reverse English alphabetical order?

The position(s) of how many letters will remain unchanged if each of the letters in the word ELECTRIC is arranged in reverse English alphabetical order?

Each letter in the word HARMFUL is arranged in the English alphabetical order. How many letters are there in the English alphabetical order between the letter which is third from the left end and the one which is third from the right end in the new letter-cluster thus formed?

Each letter in the word KNIFERS is arranged in the English alphabetical order. How many letters are there in the English alphabetical order between the letter which is second from the left end and the one which is third from the right end in the new letter-cluster thus formed?

If each vowel in the word ROMANCE is changed to the nearest consonant succeeding it in the English alphabetical order and each consonant is changed to the nearest vowel succeeding it in English alphabetical order, then which of the following letters is repeated twice in the new group of letters thus formed?