2
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This is my fifth batch of sequence puzzles that are nasty and hard to solve; yet, each of them has a clear and justifiable solution.


Sequence 1:
T?M, AOT?, ROT?, AN?, T?SB, ROT?, TFA


Sequence 2:
5, 12, ?, 14, 11, 8, 16, ?, 19, 3, 17, ?, 15, 10, ?, 13, 4, 18, ?, ...


Sequence 3:
T, u, b, d, l, ?, ?, ?, i, b, o, h, f


Sequence 4:
A, P, ?, L, S, A, P, A, ?, B, L, H, M, R, T, ?, M, M, M, ?, ?, ...

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  • $\begingroup$ Sequence 3 was the hardest one, and the prize goes to Gamow. $\endgroup$ – Alexis Mar 15 '15 at 15:27
5
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Sequence 1:

Star wars:
* TPM = The Phantom Menace
* AOTC = Attack of the Clones
* ROTS = Revenge of the Sith
* ANH = A New Hope
* TESB = The Empire Strikes Back
* ROTJ = Return of the Jedi
* TFA = The Force Awakens

Sequence 3:

The letters of Stack Exchange, shifted by one position in the alphabet:
S, t, a, c, k, E, x, c, h, a, n, g, e
T, u, b, d, l, F, y, d, i, b, o, h, f

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6
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Looking up gave me the answer for sequence 2:

Number on a standard, London, or clock dartboard read in a counter- clockwise direction. Sequence: 5, 12, 9, 14, 11, 8, 16, 7, 19, 3, 17, 2, 15, 10, 6, 13, 4, 18, 1, ...

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5
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Sequence 4:

First letters of host cities for the Summer Olympics with the missing letters being A (Athens), P (Paris), S (St. Louis), L (London), S (Stockholm), A (Antwerp), P (Paris), A (Amsterdam), L (Los Angeles), B (Berlin), L (London), H (Helsinki), M (Melbourne), R (Rome), T (Tokyo), M (Mexico City), M (Munich), M (Montreal), M (Moscow), L (Los Angeles), S (Seoul), B (Barcelona), A (Atlanta), S (Sydney), A (Athens), B (Beijing), L (London), R (Rio de Janeiro), T (Tokyo)

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