Kisan Diwas is celebrated

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

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

Find the missing number in the given number series.

 305, 316, 302, ?, 295, 346 

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

18, 25, 36, 49, 66, ?

16, 8, 8, 12, ?, 60

110, 112, 116, 122, 130, ?

6, 7, 15, 46, 185, ?

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

1458, ?, 162, 54, 18, 6

3 4 10 33 136 ?

16, 24, 36, ?, 81, 121.5

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

17, 138, 307, 532, ?, 1182