Number Series

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

(1/3) (1/8) (2/8) (1/16)

2.Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

7 10 12 13

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

20 22 23 26

4.Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

22 24 25 26

5.Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?

12 14 27 53