Which figure should replace the question mark (?) if the

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

45, 54, 72, ?, 126, 162

226, 171, 124, 85, 54, ?

What will come in the place of questions (?) mark in the following questions.

160, 223, 271, 306, 330, ?

Find the missing number in the given number series.

2, 5, 16, 65, 326, ?

69, 35.5, 39.5, 68.25, 152.5, ?

Find the missing number in the given number series.

2, 7, 19, 62, ?, 1270 

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

36, 85, ?,  230, 330, 451

4097, ?, 4359, 4493, 4629, 4767

1, 7, 25, 61, ?

100, 120, 260, ?, 3220, 16120