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

Option 1: 20

Option 2: 19

Option 3: 15

Option 4: 18

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

Option 1: 64

Option 2: 256

Option 3: 126

Option 4: 184

Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
6, 6, 7, 7, 11, 15, 20, 42, 36, 106, 61, 231, ?, 447

Option 1: 97

Option 2: 75

Option 3: 88

Option 4: 123

Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
2, 4, 7, 11, 16, 22, ?

Option 1: 31

Option 2: 54

Option 3: 29

Option 4: 28

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

Option 1: 8

Option 2: 9

Option 3: 16

Option 4: 11