In which year was the ‘Lotteries Regulation Act’

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

130, 158, 214, 298, ?, 550

Choose the missing term.

R, U, X, A, D,?

26, 227, 628, 1229, ?, 3031

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

146, 122, ? , 74, 50, 26

Find the missing number in the given number series.

 1165, ?, 1040, 985, 935, 890 

Find the missing number in the given number series.

2, 5, 16, 65, 326, ?

21         24          22         25       23         ? 

16, 20, 11, 27, ?, 38

3 4 10 33 136 ?

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

1.5, 3.5, 9.5, 27.5, 81.5, 243.5, ?