1, 2, 3, 10, ____, 9802

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

Look at this series: 1000, 200, 40, . . . 
What number should come next

3 13 18 23 28 33
What number should come next

18 21 25 18 29 33 18
What numbers should come next

2, 10, 40, 120,____