​How many such pairs of letters are there in the word DAUGHTER (in both forward and backward directions) which have as many letters between them in the word as there are in the English alphabetical order?​

This question is based on the following words.
TOO CUT JAB AGE
In each of the words, if each vowel is changed to the letter following it in the English alphabetical order and each consonant is changed to the letter preceding it in the English alphabetical order, then how many letter-clusters thus formed will have no vowel in them?

Refer to the following letter sequence and answer the question :
(Left) S B T M R E S I C Z Y O W A P D F H G U L (Right)
Which letter is fifth to the right of the twelfth letter from your right end of the given sequence ?

Study the given letter series and answer the question that follows.
(Left) H A D W V Q T S P E R S T K E L M T  (Right)
How many such vowels are there each of which is immediately preceded by a consonant and also immediately followed by a consonant?

The position of how many letters will remain unchanged if each of the letters in the word BRACKET is arranged in alphabetical order?

Refer to the following letter series and answer the question.
(Left) B E S U Y N OA P S B G S AX T G (Right)
How many letters are there in the English alphabetical series between the letter which is sixth from the left end and the letter which is fifth from the right end of the given series?