The base of a right pyramid is an equilateral triangle with

12, 11, 20, 57, 224, 1015

72, 79, 100, 135, 184, ?

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

17, 21, 30, 46, ?, 107

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

500, 489, 467, 434, 390, 335, ?

12, 19, 33, ?, 117

252, 235, 220, 207, 196, ?

350 435 367 ? 384 401

7 47 ? 223 359 527

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

18, 22, 34, 70, 178, ?

4, 4, 12, 60, ?, 3780