What is the cost of reclamation of acidic soils under

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

180, 184, 168, 204, ?, 240

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

10, 15, 30, 75, 225, 787.5, ?

7, 8, 18, 57, 232, ?

18, 54, 162, ?, 1458, 4374

81 72 136 111 ? 278

9 25 ? 121 221 337

362 452 550 656 770 892 ?

Find the missing number in the given number series.

8, 9, 16, 11, 32, 13, ?

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

4, 10, 22, 46, ?, 190

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

47, 56, 65, 121, ?, 340