In which of the following states is the Bhitarkanika

21, 37, 73, 137, ?, 381

945, 1890, ?, 504, 144, 32

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

7, 20, 59, 176, 527, 1580, ?

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

17, 81, 131, 169, 197, ?

152        142       122      ?      52       2

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

17, 28, 48, ?, 123, 182

33      41      25      49      17       ?

135, 148, ?, 184, 207, 236

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

146, 122, ? , 74, 50, 26

117, 117, 121, 129, 141, ?