If the letter 'Z' is the 26th letter, what is the 15th letter of the alphabet?

A. O

If the 15th letter of the alphabet is replaced by 'X', what is the new letter at the 15th position?

B. X

What is the 10th letter of the English alphabet?

A. J

In the series A, B, C, D, E, F, G, H, I, J, how many times does the letter 'E' occur?

A. 1

If the letter 'Z' is the 26th letter, what is the position of 'T' in the alphabet?

A. 20