The famous Pushkar lake is

254, ?, 1022, 1150, 1214, 1246

Find the missing number in the given number series.

8, 13, ?, 23, 28, 33

64, 79, 109, 169, 289, ?

8    8    12    24     60      ?

In each of the following number series, one term is missing. Find the missing term.

1, 4, 9, 16, 25, ?

55      56       52      61       ?       70       34

1, 7, 37, 187, 937, ?

24, 168, 28, 140, 35, ? 

8, 12, 20, 32, 52, ?, 136

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

40, 25, 30, 50, 105, ?