(248 + 352)/(34 - 30) = ?

306, 272, 240, ?, 182, 156

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

256, 128, 64, 32, 16, ?

37, 49, 63, ?,  97, 117

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

4, 2605, 5309, 8118, ?

98, 134, 198, ?, 442, 638

16, 16, 32, 96, ?, 1920

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

22, 25, 30, 37, 48, ?

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

225, 227, 233, 245, 265, ?

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

16, 16, ?, 96, 384, 1920

4, 4, 8, 32, 256, ?