Which plant pigment is responsible for red/purple colour

4, 5, 11, 34, 137, ?

216, 81, 297, 378, ?, 1035, 1728

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

960, 960, 480, ?, 40, 8

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

12, 13, 27, ?, 329, 1646

864, 432, 144, ? , 7.2, 1.2

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

29, 30, 33, ?, 69, 150

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

47, 56, 120, 145, ?, 410

30           162         344         ?              890         1270

70, 69, 73, 64,80, 55, ?

120, 136, 111, 147, ?, 162