Find the missing number in the given series 6, 14, 36, 98, ?

Find the missing number in the given series 2, 12, 36, 80, 150, ?

Find the missing number in the given series 4, -8, 16, -32, 64, ?

Find the missing numbers in the given series 1, 2, 3, 14, 5, 34, 7, ?, ?

Find the missing number in the given series 24, 60, 120, 210, ?

Find the missing number in the given series 2, 6, 12, 20, 30, 42, 56, ?