Number Series - General Questions

Look at this series: 1, 2, 6, 21, 88, 445, … What number should come next?

Look at this series: 150, 141, 132, 123, 114, 105, … What number should come next?

Look at this series: 9, 88, 11, 82, 13, 76, … What number should come next?

Look at this series: 9, 16, 25, 36, 49, 64, … What number should come next?

Look at this series: 143, 133, 123, 113, 103, 93, … What number should come next?