Inter-culture with bullocks or tractor is mostly

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

25, 25, 5, 10, 2, ?

156, 172, 196, ?, 268, 316

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

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

62, 87, 137, ?, 312, 437

415 246 367 ? 335 310

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

12, 27, 44, 65, ?, 139

If series II follows the same sequence pattern as series I shown below, determine the value of 'p'.

Series I: 3, 4, 9, 34, 159, 784

13, 41, 69, ?, 125, 153 

14 20 28 39 ? 74

72, 97, 147, ?, 322, 447