The measure the speed of the processor,

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

7, 19, 55, 163, 487, ?

Find the missing number in the given number series.

5, 9, 18, 34, 59, ?

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

4, 11, 32, 95, 284, 851, ?

36      37       33      42       ?       51       15

12, 25, 51, ?, 207, 415 

32, 42, 62, 92, ?, 182

43           86           258         ?              5160                       30960

99, 101, 107, 131, 251, ?

What value should come in the place of (?) in the following number series?

251, 272, 296, ?, 353, 386

140, 146, 158, 176, ?, 230