The  11th Raisina Dialogue  was held in New Delhi

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

111, 109, 115, ?, 211, -509

7      8       ?       13       17        22      28

138, 140, 152, 174, ?,  248

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

17, 81, 131, 169, 197, ?

5, 12, 24, 36, 52, ?

23, 39, 64, 100, ?, 213

Find the missing number, in the given number series.

42, 52, 72, 112, 192, ?

What value should come in the place of (?) in the following number series?

300, 421, 252, ?, 188, 549

[(145)² ÷ 25 × 52] ÷ ? = 29 × 13

17, 9, ?, 13.5, 25, 65