What collateral-free loan amount are banks mandated to

18, 22, 28, 38, 54, ?,

150     15      3      ?      0.36       0.18

15.5, 62, 186, ?, 2232,  8928

(248 + 352)/(34 - 30) = ?

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

4, 8, 2, 12, 1.5, ?

4, 9, 25, ?, 121, 169

4.8, 14, 62, ?, 1516, 7578 

178        168       148      ?      78       28

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

50, 70, 110, 190, 310, ?

What will come in place of (?) Question mark in the given number series.

1, 2, 5, 14, 41, 122, ?