If it is possible to make only one meaningful English word with the second, third, sixth, and ninth letters of the word REGULATOR (using each letter only once in the words) which would be the second letter of the word from right ? If more than one such word can be formed, give ‘Y’ as the answer. If no such word can be formed, give ‘Z’ as your answer.

If all the even digits are deleted from the given arrangement, which of the following will be eight from the right end of the arrangement

How many 5s are there in the given arrangement each of which is immediately followed by a digit which was a numerical value of less than three

Which of the following is fifth to the left of the sixteenth digit from the left end of the given arrangement

How many such 2s are there in the given arrangement each of which is immediately followed by a perfect square

(Note : 1 is also a perfect square)

How many such 3s are there in the given arrangement each of which is immediately preceded as well as immediately followed by an even digit