How many independent words can $HEARTLESS$ be divided into without changing the order of the letters and using each letter only once?

How many pairs of letters are there in the word $REPURCUSSION$ which have as many letters between them in the word as in the alphabet and that too in the same order?

Arrange the given words in alphabetical order and choose the one that comes in the second place:

Find which one word cannot be made from the letters of the given word: $INTELLIGENCE$.

Find which one word cannot be made from the letters of the given word: $DISSEMINATION$.

If in the word $DISTANCE$ all the vowels are replaced by the next letter and all the consonants are replaced by the previous letter and then all the letters are arranged alphabetically,which letter will be third from the right?