What will come in place of the question mark (?) in the following number series?
312 231 295 ? 282 257
The series follows a pattern that,
-92, +82, -72, +62, -52
In the following question, select the missing number from the given series.
2, 4, 6, 8, ?, 12
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4, 5, 8, 9, 12, 13, ?
41, 54, 67, ?, 93
11, 22, 44, 88, 176, ?
144, 139, 133, 128, ?, 117, 111
21, 11, 32, 43, 75, ?
831, 842, 853, 864, 875, ?
8, 16, ?, 64, 128