What should come in place of the question mark (?) in the given series? 55, 59, 67, 83, 115, ?

Find the missing number that completes the given sequence. 5, 15, 8, 18, 11, 21, 14, ?

What should come in place of the question mark (?) in the given series? 2, 15, 41, 80, 132, ?, 275