Coding-Decoding

Form a four-letter meaningful word using the first, sixth, seventh, and ninth letters of the given word TELEPROMPTER. The second last letter of the word will be the answer. If more than one four-letter word can be formed using the given letters then mark ‘X’ as the answer and if no such words can be formed then mark ‘Y” as the answer.

If in the word 'DRINKING', all the consonants are first arranged alphabetically and then all the vowels are arranged alphabetically and then all the vowels are replaced with the next letters and all the consonants are replaced with the previous letters from the English Alphabet. Which letter will be third from the right end?

If the positions of the first and last letters of the word MYTHOLOGICAL are interchanged; similarly the positions of the second and second last letters are interchanged and so on, then which of the following letters will be 8th from the left end after arrangement?

How many such pairs of letters are there in the word “Streaming” having the same number of letters between them as they have between them according to the alphabetical order? 

How many such pairs of digits are there in the number ‘73951286’ each of which has as many digits between them in the number as in the number series (Both forward and backward)?