In the sequence P, Q, R, ?, T, U, what character is missing?

A. S

In a sequence of letters: A, C, E, G, ?, K. What is the missing letter?

B. H

Identify the missing character in the series: 2, 4, 6, ?, 10. What number should replace the question mark?

B. 8

In the pattern: X, Y, Z, A, ?, C. What character is missing?

A. B

Find the missing number in the series: 1, 3, 5, 7, ?, 11. What number fits in the blank?

B. 9