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Math Brain Teasers

Math brain teasers require computations to solve.

Brain Teasers

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  Titleˆ Popularity Difficulty Submitted  
16 1 to 1,000,000 *** ** 11/21/01 by tallpaul5k
17 1 to 12 *** *** 09/08/06 by moonsliver86
18 1 to 20 ** ** 02/25/08 by shenqiang
19 1, 3, 6 *** ** 05/02/02 by skye
20 1-9 = 1:5 *** *** 01/20/03 by doggyxp
21 1/29th *** *** 10/01/06 by lessthanjake789
22 10 + 10 equals 4 *** ** 04/25/02 by cathalmccabe
23 10% *** ** 09/15/02 by timmyboym
24 10+10 =20? *** *** 02/05/02 by rml417
25 10,000 - 9,999... *** ** 02/09/05 by fishmed
26 100 Closed Lockers *** *** 10/03/02 by warrior
27 100 Golfers *** ** 10/01/01 by Michelle
28 100 Percent *** ** 08/09/03 by scoutman
29 100 Yard Dash *** ** 06/10/02 by bobbrt
30 1000 Prime Numbers *** ** 09/24/03 by jess1118

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