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Series Brain Teasers

Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.

Brain Teasers

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  Titleˆ Popularity Difficulty Submitted  
31 1, 2, 1.5, 1.666... *** *** 11/12/01 by mrice
32 1, 2, 2, 3, 2, 4, 2, 4, 3, 4, _, _, _ ** *** 09/13/08 by shenqiang
33 1, 2, 2, 4, 8, 32, 256, 8192, ... *** ** 09/04/11 by CosminBotoc
34 1, 2, 4, 7, 11, ?? *** ** 01/10/03 by hprulz
35 1, 2, 5, 10, 17, 26, ? *** ** 09/04/03 by jacintan
36 1, 2, 5, 10, 20,_ *** ** 12/09/01 by Higgo
37 1, 2, 6, 12, 36, 72, 216... *** ** 01/13/06 by Draw
38 1, 2, 9, 121, 16900, ? *** *** 06/15/06 by lips
39 1, 3, 3, 6, 5, 9, 7, 12, 9 ... *** *** 02/04/01 by cruiser
40 1, 3, 5, 9, 12? ** *** 07/20/02 by mad-ade
41 1, 3, 6, 11 *** *** 12/10/05 by hamburger
42 1, 3, 6, 55, 66... *** **** 06/22/04 by fishmed
43 1, 3, 7, 11, 17, 23, 31, 50, 60, 71, ... *** *** 11/25/07 by shenqiang
44 1, 3, 7... *** ** 05/19/04 by turtle
45 1, 3, 9, 33, 153, 873, 5913, ? *** *** 04/26/06 by Draw

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