How many members are there in the Committee on Public

Find the next term in the series:

3, 10, 21, 36, 55, ?

5      3      4      7.5      17       ?       138

78      79       75      84       ?       93       57

What will come in place of (?) question mark in the given number series.

52, 61, 79, 106, 142, ? 

What will come in place of the question mark (?) in the following series?

132, 101, 130, ?, 126, 109

36, 48, 24, 60, ?, 72

33      41      25      49      17       ?

13, 28, ?, 118, 238, 478

?, 15, 45, 225, 1575, 14175

384, 357, 313, 252, 174, ?