During whose reign did the famous traveler Fa Hien visit India?
Fa Hien, the Chinese Buddhist pilgrim, visited India during the reign of Chandragupta II.
32, 8, 4, ?, 3, 3.75
6 7 15 46 185 ?
...20 910?2971.5
...Select the number from among the given options that can replace the question mark (?) in the following series.
64, 60, 52, 40, ?, 4
13 22 40 67 103 ?
...11 46 109 208 351 ?
32, 65 , 196, 785, ? , 23557
5 ? 205 823 7405 29623
...4 8 12 48 ? 432
...12 36 90 180 270 ?
...