If 'Z' is the 26th letter, what is the 10th letter after 'Z' in a circular alphabet?
Answer: A. J
In a circular alphabet, after 'Z', the sequence continues with 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J'. Thus, the 10th letter after 'Z' is 'J'.