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

B. 3

If the letter 'X' is the 24th letter, what is the letter that comes 5 positions before it?

A. S

What is the 10th letter of the English alphabet?

A. J

If the letter 'X' is the 24th letter of the alphabet, what is the 24th letter before 'X'?

A. T

What is the 5th letter in the English alphabet?

B. E