question mark (?) in the following number series?
5, 10, 30, 105, 440, ?
8.what will come in the place of the question mark (?) in the following number series?
11, 18, 30, 45, 61, 76, ?
9.what will come in the place of the question mark (?) in the following number series?
36, 45, 63, 90, 126, ?
10.what will come in the place of the question mark (?) in the following number series?
5, 6, 21, 110, 777, ? 