Each vowel in the word 'REFRIGERATOR' is changed to the following letter in the English alphabetical series, and each consonant is changed to the previous letter in the English alphabetical series. In the newly formed word, how many alphabets are there in the English alphabetical series between the alphabet which is 4th from the right and 6th from the left?

Refer to the given number and symbol series and answer the question that follows. Counting to be done from left to right only. All numbers are single-digit numbers. (Left) © $ £ 7 3 @ £ 7 8 6 8 % 6 © 3 4 & € 9 @ 8 5 (Right) How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by a number?

Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. All numbers are single-digit numbers. (Left) 6 7 8 9 & 5 £ & $ £ $ 1 * * # * € 8 % 8 © 7 (Right) How many such numbers are there, each of which is immediately preceded by a symbol and also immediately followed by a symbol?