What will come in place of (?), in the given expression.

84, 97, ?, 162, 214, 279

In each of the following number series, one term is missing. Find the missing term.

4, 9, 16, 25, 36, ?

71, 79, 88, 152, ?, 393

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

12, 27, 44, 65, ?, 139

4      11        22       ?        56      79      106

15.5, 62, 186, ?, 2232,  8928

600     60      12      ?      1.44       0.72

9       14       38       129       ?      2705      16260

In each of the following series, one term is missing. Find the missing term.

2, 5, 11, 23, 47, ?