What comes in place of question mark (?) in the following number series? 4, 12, 36, 108, 324, ?

What should come in place of question mark (?) in the following number series? 132 156 ? 210 240 272

Replace the question mark (?) in the following number series with suitable option: 3, 3, 4.5, 9, 22.5, ?

Which number will come in the place of question mark? 6, 11, 21, 36, 56, ?

Which number will come in the place of question mark? 9, 25, 49, ?, 121

What will be the next number in the following number series? 48, 24, 72, 36, 108, ?