In the sequence 2, 4, 8, 16, ?, 64, what is the missing number?

B. 32

P is the uncle of Q. Q is the daughter of R. R is the sister of P. How is P related to R?

A. BROTHER

In the sequence 2, 4, 8, 16, ?, 64, what is the missing number?

A. 32

Find the missing letter in the series: M, N, O, ?, Q, R.

A. P

Find the missing character in the series: M, N, O, ?, Q, R.

A. P