How many pairs of letters in the word 'CHAIRS' have as many letters between them in the word as in the alphabet ?

C. TWO

How many pairs of letters are there in the word 'DONATE' which have as many letters between them as there are in the alphabet ?

C. TWO

How many pairs of letters are there in the word 'LANGUISH' which have as many letters between them in the word as in the alphabet ?  

C. TWO

How many pairs of letters in the word 'BRIGHTER' have as many letters between them in the word as in the alphabet ?

C. 3

How many pairs of letters are there in the word 'ADEQUATELY' which have as many letters between them in the word as in the alphabet ?

C. THREE