In the sequence of alphabets and digits below, how many pairs are such that the first item is an alphabet but the second is a number?

1) 5  
2) 1
3) 0
4) 6

In the number from 1 to 45 which are exactly divisible by 3 are arranged is ascending order, minimum number being on the top, which would come at the ninth place form the top ? 

1) 18  
2) 21
3) 24
4) 27

Which is the 8th letter from your left?

1) E  
2) H
3) I
4) S