JIPMAT (LR) PYQs

In this question, choose that set of numbers from the four options, that is similar to the set (63, 49, 35)

The odd term out in the series 15, 16, 34, 105, 424, 2124, 12756 is

Find the number that can replace the question mark in the series given below: 15, 18, 17, 21, 20, 25, 24, 30, 29, ?