Which one of the following pillars addresses risk as per

625, 125, 375, 75, 225, 45, ?

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

111, 109, 115, ?, 211, -509

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

15, 26, 39, 56, ?, 98

120, 130, 145, 165, ?,  220

45, 166, 607, 1568, 3249, ?

4, 4, 5, ? , 248, 1248

9 25 ? 121 221 337

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

29, 30, 33, ?, 69, 150

9       14       38       129       ?      2705      16260

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

22, 25, 30, 37, 48, ?