Series
Puzzles
- decimal.hex.reversalComplete the sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 53, 371, ... New
- doubled.digitsWhat's the next number? New
- factorial.towersFind the next number in this series: New
- lcd.displayWhat is the next symbol in the following sequence? New
- lcd.patternsWhat pattern comes next in this sequence of four patterns? New
- led.segmentsWhat would the next symbol in this series look like? New
- letter.count.convergenceCan anyone spot the logic behind this sequence? New
- number.name.lengthsWhat number comes next? New
- paper.sizesFind the missing number: New
- polygonsWhat is next in this series? New
- primorial.fibonacciWhat are the next few terms, and why? New, unsolved
- race.distancesIdentify this very simple number series. New
- reduced.fractionsWhat is this sequence? New
- roman.numeral.lettersWhich of the words avail, oval, valid, mail continues the sequence dig, minim, militia, sieve, ave? New
- series.00How can I find the next number in this series? Added material
- series.01M, N, B, D, P ?
- series.02H, H, L, B, B, C, N, O, F ?
- series.03W, A, J, M, M, A, J?
- series.03aG, J, T, J, J, J, A, M, W, J, J, Z, M, F, J, ?
- series.03bA, J, B, C, G, T, C, V, J, T, D, F, K, B, H, ?
- series.03cM, A, M, D, E, L, R, H, ?
- series.04A, E, H, I, K, L, ?
- series.05A B C D E F G H?
- series.06Z, O, T, T, F, F, S, S, E, N?
- series.06aF, S, T, F, F, S, ?
- series.071, 1 1, 2 1, 1 2 1 1, ... Added material
- series.08aG, L, M, B, C, L, M, C, F, S, ?
- series.08bA, V, R, R, C, C, L, L, L, E, ?
- series.09aS, M, S, S, S, C, P, P, P, ?
- series.09bM, S, C, P, P, P, S, S, S, ?
- series.10D, P, N, G, C, M, M, S, ?
- series.11R O Y G B ?
- series.12A, T, G, C, L, ?
- series.13M, V, E, M, J, S, ?
- series.14A, B, D, O, P, ?
- series.14aA, B, D, E, G, O, P, ?
- series.15A, E, F, H, I, ?
- series.16A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, X, Y?
- series.17T, P, O, F, O, F, N, T, S, F, T, F, E, N, S, N?
- series.1810, 11, 12, 13, 14, 15, 16, 17, 20, 22, 24, ___ , 100, 121, 10000
- series.190 01 01011 0101101011011 0101101011011010110101101101011011 etc.
- series.201 2 5 16 64 312 1812 12288
- series.215, 6, 5, 6, 5, 5, 7, 6, ?
- series.223 1 1 0 3 7 5 5 2 ?
- series.2322 22 30 13 13 16 16 28 28 11 ?
- series.24What is the next letter in the sequence: W, I, T, N, L, I, T?
- series.251 3 4 9 10 12 13 27 28 30 31 36 37 39 40 ?
- series.261 3 2 6 7 5 4 12 13 15 14 10 11 9 8 24 25 27 26 ?
- series.270 1 1 2 1 2 1 3 2 2 1 3 1 2 2 4 1 3 1 3 2 2 1 4 2 ?
- series.280 2 3 4 5 5 7 6 6 7 11 7 13 9 8 8 17 8 19 9 10 13 23 9 10 ?
- series.291 1 2 1 2 2 3 1 2 2 3 2 3 3 4 1 2 2 3 2 3 3 4 2 3 3 4 3 4 ?
- series.30I I T Y W I M W Y B M A D
- series.316 2 5 5 4 5 6 3 7
- series.320 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 1
- series.332 12 360 75600
- series.343 5 4 4 3 5 5 4 3
- series.351 2 3 2 1 2 3 4 2 1 2 3 4 2 2 3
- series.36ETIANMSURWDKGO
- series.3710^3 10^9 10^27 10^2 0 4 8 3
- series.38?, ?, ?, T, W, H, R, F, U, I, ?, ?, ...
- series.39M, E, P, B, P, ?
- seven.nine.eightFill in the blank: New
- subway.stopsWhat is the missing term and what does the series represent? New
- titan.sequencesDetermine X in each of the following sequences (two from the Titan test, which appeared in Omni magazine,... New
- united.states.letters1. What letter comes next in this sequence? New
- word.lengthsAnd what are the next two numbers in this sequence? New