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Hardest Teasers

These brain teasers have been voted as the most difficult. Only teasers with at least 20 votes are shown. Good luck solving them!

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  Title Popularity Difficultyv Submitted  
61 16 + 53 + 3 + 27 + 7 = 14 *** **** 11/20/06 by spookboy0
62 Nine of Us *** **** 08/19/10 by Oxiproxd9
63 Mixing Math and Poetry *** **** 03/19/05 by donfrench
64 ACRON,Inc. *** **** 06/11/03 by griphook
65 1, 3, 6, 55, 66... *** **** 06/22/04 by fishmed
66 Code Nuke *** **** 01/16/03 by electronjohn
67 12:34PM *** **** 05/06/04 by fishmed
68 Hidden Message *** **** 04/28/05 by Gander
69 Very Crafty Words *** **** 01/25/05 by fishmed
70 5 = B P in M B ** **** 03/13/03 by jizzyhuggs
71 Sweet Tooth *** **** 02/16/06 by phrebh
72 Sands of Time ** **** 08/11/04 by cnmne
73 Operation: Weather-Ectomy *** **** 11/14/05 by cnmne
74 What Letter is Missing? *** **** 11/05/04 by howdyall1311
75 Dimension *** **** 06/10/06 by 12345_lewis2

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