Straight Lines ...

$$14, 12, 21, 59, 231, 1149, ?$$

Find the next term of the series $$1728, 2744, 4096, 5832, 8000, 10648, ?$$

Find the missing number from the given alternatives.

Determine the next term $$20, 24, 33, 49, 74, 110, ?$$

$$529, 841, 961, 1369, 1681, 1849, ?$$

$$8, 31, 122, 485, 1936, 7739, ?$$

Six people are going to sit in a row on a bench. $$A$$ and $$B$$ are adjacent, $$C$$ does not want to sit adjacent to $$D.E$$ and $$F$$ can sit anywhere. Number of ways in which these six people can be seated is 

$$499, 622, 868, 1237, 1729, 2344, ?$$

Find : $$12,15,21,24,30,33 , ? , ?$$

$$23,29,47,75 , ?$$