Number Series - General Questions

Look at this series: 4, 9, 16, 25, 36, 49, … What number should come next?

Look at this series and find the number that does not belong: 1, 8, 27, 67, 125, 216, 343

Look at this series and find the number that does not belong: 20, 30, 42, 57, 72, 90, 110

Look at this series and find the number that does not belong: 3, 6, 12, 23, 48, 96, 192

Look at this series and find the number that does not belong: 1, 8, 27, 64, 126, 216, 343