Which of the following pairs of elements shows the elements of Series I and Series II respectively, which are exactly in the middle of the seventh element from the left end and the sixth element from the right end in Series I and II?

Which of the following pairs of elements shows the elements of Series I and Series II respectively, which are exactly in the middle of the seventh element from the left end and the sixth element from the right end in Series I and II?

Three of the following four are alike in a certain way based on their position in the above series. Which is the one that does not belong to that group?

How many such digs are there in the sequence each of which is immediately preceded as well followed by letters?

Which of the following letters is exactly midway between only letters falling between C and 5?

If each symbol of the above sequence is replaced with the dig its from 1 to 9 which are not there in the sequence, then what will be the sum of all digits? (Each symbol should be replaced with different digit].

If the first element from the left interchanges place with the tenth element from the left, similarly second with ninth third with eighth, fourth with seventh and so on, then which of the following will be seventh to the left of eighth element from the right?

What should come in the place of question mark (?) in the following letter sequence?

AZB, CYD, EXF, ? , IVJ, KUL

How many such vowels are there in the above arrangements, each of which is immediately preceded by a digit and immediately followed by a consonant?