Series Completion

120, 99, 80, 63, 48, ?

589654237, 89654237, 8965423, 965423, ?

3, 10, 101, ?

In the series 2, 6, 18, 54, ...... what will be the 8th term ?

125, 80, 45, 20, ?

1, 1, 4, 8, 9, 27, 16, ?

1, 2, 3, 6, 9, 18, ?, 54

6, 13, 25, 51, 101, ?

5, 6, 9, 15, ?, 40

1, 3, 4, 8, 15, 27, ?

3, 4, 7, 7, 13, 13, 21, 22, 31, 34, ?

198, 194, 185, 169, ?

2, 3, 5,7,11,?, 17

6, 12, 21, ?, 48

Which term of the series 5, 10, 20, 40, ..... is 1280?

2, 5, 9, ?, 20, 27

2, 3, 3, 5, 10, 13, ?, 43, 172, 177

9, 27, 31, 155, 161, 1127, ?

2, 1, 2, 4, 4, 5, 6, 7, 8, 8, 10, 11, ?

Which of the following will not be a number of the series 1, 8, 27, 64, 125,.....?