Swachh Bharat Mission was launched on the birth

23, 27, 39, 59, ?,  123

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

4, 2605, 5309, 8118, ?

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

2, 6, 18, 54, 162, ?

25     25     37.5     ?     328.125     1804.6875

32      48      96     ?     720     2520

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

12, 27, 44, 65, ?, 139

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

12, 13, 27, ?, 329, 1646

312, 302, 282, ?,  212, 162

23       44      64      83       ?        118

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

18, 22, 34, 70, 178, ?