निम्ननलिखित प्रश्न

562, 628, 698, ?, 850

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

34, 61, 7, ?, -20, 115

18, 22, 28, 38, 54, ?,

1, 7, 25, 61, ?

166        156       136      ?      66       16

11      6      7      12      26       ?       205.5

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

54, 81, 135, 216, 324, ?

11           22.5        47           102         236         ?

6848 + 9215 – 7295 - ? = 5945 – 3244

7      8       ?       13       17        22      28