Find the missing letter in the series: z, x, v, t, ?

C. Q

Complete the series: a, c, e, g, ?

B. H

What is the next letter in the series: B, E, I, M, ?

A. O

Find the odd one out in the series: A, C, E, G, I, K, M, O, Q, R

D. R

What is the next letter in the series: A, C, E, G, ?

A. I