Complete the following series: 2, 5, 15, 7, 28, 9 ...?
Complete the series - 1, 1, 2, 6, 24, ?, 720
Complete the series - 1, 5, 13, 25, 41, ?
Complete the series - 12, 15, 19, 24, ?
Complete the series - 122, 197, 290, ?
Complete the series - 19 : 367 :: ? :?
Complete the series - 3, 15, ?, 63, 99, 143
Complete the series - 49 : 169 :: 6 : ?
Complete the series - 5760, 960, ?, 48, 16, 8
Complete the series - 6, 13, 28, 59, ?