Which of the following district have the highest ST

415 246 367 ? 335 310

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

40, 25, 30, 50, 105, ?

14.8% of 7200 – 16.4% of 6200 + 15.09% of 8100 = 10% of ?

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

29, 42, ?, 95, 135, 184

43, 56, 82, ?, 173, 238

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

72, 108, 172, ?, 416, 612

114, 156, ?,  238, 274, 304

150, 158, 131, 195, 70, ? 

166        156       136      ?      66       16