Look at this series: 2, 1, (1/2), (1/4), … What number should come next?

Look at this series: 36, 34, 30, 28, 24, … What number should come next?

Look at this series: 58, 52, 46, 40, 34, … What number should come next?

Look at this series: 1.5, 2.3, 3.1, 3.9, … What number should come next?

Look at this series: 14, 28, 20, 40, 32, 64, … What number should come next?

Look at this series: 2, 4, 6, 8, 10, … What number should come next?

Look at this series: 201, 202, 204, 207, … What number should come next?

Look at this series: 80, 10, 70, 15, 60, … What number should come next?

Look at this series: 2, 6, 18, 54, … What number should come next?

Look at this series: 5.2, 4.8, 4.4, 4, … What number should come next?

Look at this series: 8, 6, 9, 23, 87 , … What number should come next?

28 25 5 21 18 5 14

8 11 21 15 18 21 22

9 16 23 30 37 44 51

2  8 14 20 26 32 38

9 11 33 13 15 33 17

6 10 14 18 22 26 30

8 12 9 13 10 14 11

36 31 29 24 22 17 15

3 5 35 10 12 35 17

7 9 66 12 14 66 17

4 7 26 10 13 20 16

Look at this series: F2, __, D8, C16, B32, … What number should fill the blank?

Look at this series: 664, 332, 340, 170, ____, 89, … What number should fill the blank?

Look at this series: V, VIII, XI, XIV, __, XX, … What number should fill the blank?

Look at this series: 70, 71, 76, __, 81, 86, 70, 91, … What number should fill the blank?

Look at this series: 8, 43, 11, 41, __, 39, 17, … What number should fill in the blank?

Look at this series: VI, 10, V, 11, __, 12, III, … What number should fill the blank?

Look at this series: (1/9), (1/3), 1, ____ , 9, … What number should fill the blank?

Look at this series: 83, 73, 93, 63, __, 93, 43, … What number should fill the blank?