In the series X, Y, Z, A, B, C, how many letters are there before 'C'?

A. 4

If the position of 'Z' is 26, what is the position of 'M'?

A. 12

In the series A, B, C, D, E, F, G, how many times does the letter 'C' appear?

A. 1

In the series A, B, C, D, E, F, G, how many times does the letter 'C' appear?

A. 1

How many times does the letter 'A' appear in the series: A, B, A, C, A, D, E?

B. 3