Angle bisectors of Q and R meet at point S, inside the

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


11, 18, 32, 60, ?, 228

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

1.5, 3.5, 9.5, 27.5, 81.5, 243.5, ?

14       36       80       168       ?       696

24, 168, 28, 140, 35, ? 

7, 6, 10, 27, 104, ? 

84, 97, ?, 162, 214, 279

6400, 1600, ?,  80, 16, 4

31      32        35       ?        47         56

What value should come in the place of (?) in the following number series?

64, 80, 104, ?, 176, 224

1140, ?, 1130, 1160, 1120, 1170