Cyfers
How to Submit
Send your answers along with your full name, identity verification (photo I.D. or passport), and any prior I.Q. test scores to skillitani@gmail.com. Retests are not permitted.
Instructions
There is no time limit. A pocket calculator, pencil, and paper are allowed and encouraged. Reference aids will not be needed.
Find the solution that best replaces the question mark(s) in each series.
The Series
1) 28, 316, 432, 564, 6128, 7256, ?
2) 1, 77, ?, 99999, 5555555, 111111111, 7777777777, 333333333333
3) Z, ?, X3X3X, W4W4W4W, V5V5V5V5V, U6U6U6U6U6U
4) ?, 1023, 1203, 1230, 01230, 10230, 12030, 12300
5) 469, 1445, 6178, 8246, 10996, 21239, ?
6) 1, ?, 2, ?, 4, ?, ?, ?, ?, ?, ?, 8, ?, ?, 10274162471824
7) -234, -176, -18, 1140, 12298, ?
8) 3, 5, ?, 11, 16, 19, 24, 27
9) VVVXIX, VVIVIX, VXVXVX, IVIVIV, ?, IXIVIV
10) 2135, 3369, 45913, 571217, 691521, ?
11) 49523, 3645106, 182420500, ?
12) 72, ?, 932, 15, 317, 68, 55, ?
13) ONE, ?, Y32Y, ?, 355045
14) 18.8144, 27.14378, 36.18648, ?
15) 18, ?, 10, 14, 6, 8, 4, 5, 3, ?, 2.5
16) 1, 2, 6, ?, ?, ?, 5408554896906
17) 6969, 4698, 3484.5, 234.54, 1247.25, ?
18) ?, 34, ?, 78, 91, 45, ?, ?, -11, -32, -45, -91, -78, -56, -34, -21
19) F, 7, 9, 12, 16, 21, 27, ?, DB, 51, 61, GB, HD, 97, ?
20) ?, 3, 000000003, 4, 005, 2, ?, 8, 0009, 7
21) 7201, ?, 86, 713, 51, 239, 333, ?
22) 15893, ?, 34221, 1603, ?, 19, 8
23) 9B8D75613, ?35792468, 867?31925, 54C218G96, 276549831, 6843E1297, 7528946?3, 4912635H7
24) 84368297, 217941011161, 3861315112277, ?
25) 17, 62126, 22, 92029, 27, 94149, 32, 97079, 37, ?
26) {1, 4, 3, 3, 2, 1, 2, 5}, {4732, 68210, 517, 2309, 9312, 275, 5721, 65046}, {18928, ?, 3619, 0, 27936, ?, 40047, 390276}
27) 120153, 242495, ?, 48310178
28) 9, H, E, 10, ?, 12, A, 14, 29, ?, &, 48, Y
29) 81110914, 204312801, 21715618, 80119505, 9124412, 20730209, 3137116, ?
30) 3:421, 6:444344, 7:6544874, 2:40, 1:9, 8:55215543, 6:556555, 7:?