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

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

Which number is unsuitable in the following series? 5, 3, 6, 10, 9, 12, 17, 15, 18, 23

Which number should replace ‘?’ in the following series? 240, 120,? , 180, 360, 900

In the following question, select the missing number of the given series. 94, 105, 92, 107, 90, ?