Question : Directions: From the given options, choose the correct one that will replace the question mark (?) in the following series.
2, 8, 4, 16, 16, 32, ?, 64

Question : Directions: From the given options, choose the correct one that will replace the question mark (?) in the following series.
1, 5, 3, 2, 10, 6, 4, 15, 9, 8, ?, 12

Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
1, 2, 4, 4, 9, 6, ?, 8, 25, 10

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
15, 48, 148, ?, 1353

Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
3, 7, 3, 8, 6, 10, 18, 13, ?, 17, 360, 22