What will come in place of the question mark (?) in the following number series ?

2890 (?) 1162 874 730 658

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{llllll}14& 1004& 1202& 1251.5& 1268& ?\end{array}$

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{lllllll}13& 14& 30& 93& 376& 1885& ?\end{array}$

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{lllllll}4& 6& 9& 13.5& 20.25& 30.375& ?\end{array}$

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{lllllll}400& 240& 144& 86.4& 51.84& 31.104& ?\end{array}$

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{lllllll}9& 4.5& 4.5& 6.75& 13.5& 33.75& ?\end{array}$

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{lllllll}705& 728& 774& 843& 935& 1050& ?\end{array}$

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{lllll}1548& 516& 129& 43& ?\end{array}$

What will come in place of the questions mark (?) in the following number series?

$\begin{array}{llllll}949& 189.8& ?& 22.776& 11.388& 6.8328\end{array}$