In a certain code language, 'KING' is coded as '16181320', and 'HOP' is coded as '191211'. How will 'STA' be coded in that language?

A number has been denoted to each of the given letters. Select the option from the following four possible arrangements of these numbers that forms a meaningful word.
 E = 1, N = 2, T = 3, S = 4, T = 5, D = 6, U = 7

In a certain code language, 'GRAY' is coded as ‘718125', 'FOMK' is coded as ‘6151311'. How will 'CBHL' be coded in that code language? 

In a certain code language, '471' means 'Hair is White', '726' means 'White Her Cow', and '639' means 'Cow gives Milk'. What is the code for 'Her' in that language? 

In a certain code language, 'HELP' is written as '1652432' and 'SAVE' is written as '381445'. How will 'MAIL' be written in that language?

In a certain code language, 'STAR’ is coded as '92678' and 'FLAG' is coded as '20261521'. How will 'LOGO' be coded in that language?

In a certain code language, '693' means 'Neha likes cakes', '135' means 'cakes are sweet', '254' means 'we are girls', then what is the code for 'sweet' in the same code language? 

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)?