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IQ Brain Teaser #185 Each of the followed paired numbers have a relationship that's the same for all of the paired numbers. What is the missing number? {4, 100} {7, 111} {8, 1000} {1, 1} {12, 1100} {2, ?} 1 2 3 4 5 6 7 8 9 10 view results Back to top | Back to Main Page of Puzz.com - IQ Tests, Puzzles, Games & Contests ©2016 Puzz.com, LLC & respective partners. All rights reserved. Our IQ tests are for entertainment purposes only. Privacy Policy