Mixed Series — Prelims Questions

Find the missing term in the series: 2, 8, 6, 27, 18, 64, ?

In the series 1, 5, 4, 14, 13, 41, ?, what is the missing number?

Complete the series: 3, 2, 9, 6, 27, 18, ?

Find the next term: 7, 4, 14, 11, 28, 25, ?

What comes next in the series: 2, 3, 6, 7, 18, 19, ?