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# Windows 7: Number Crunching

 17 Oct 2009 #1 Dwarf Windows 8.1 Pro RTM x64 10,420 posts Doncaster, UK Number Crunching Here are a few number based puzzles for you. Counting my thumbs as fingers, I have 11 fingers. How did I work that out? 4 - 1 = 5 11 / 2 = 6 10 + 1 = 9 4 * 2 = 9 12 / 2 = 7 (and 7 * 2 = 12) My System Specs
 17 Oct 2009 #2 Dinesh Windows® 8 Pro (64-bit) 8,682 posts Mumbai, India Math puzzles are always out of my head. My System Specs
 17 Oct 2009 #3 Tews 64-bit Windows 8.1 Pro 12,905 posts The Southern Hinterlands Quote: Originally Posted by Dwarf Here are a few number based puzzles for you. Counting my thumbs as fingers, I have 11 fingers. How did I work that out? 4 - 1 = 5 11 / 2 = 6 10 + 1 = 9 4 * 2 = 9 12 / 2 = 7 (and 7 * 2 = 12) Thats an easy one ... you lost one to a dwarf maiden during a particularly nice evening at the local pub.... My System Specs
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 17 Oct 2009 #4 H2SO4 Win7x64 1,382 posts Since I don't get that one, I'll contribue a different puzzle: a = 1 b = 1 a = a a = b ab = a^2 ab - b^2 = a^2 - b^2 b(a - b) = (a + b)(a - b) b = (a + b) 1 = 1 + 1 1 = 2 <--- eh? Where's the logic flaw? My System Specs
 17 Oct 2009 #5 chuckr XP_Pro, W7_7201, W7RC.vhd, SciLinux5.3, Fedora12, Fedora9_2x, OpenSolaris_09-06 1,117 posts Denver suburb Quote: Originally Posted by H2SO4 Since I don't get that one, I'll contribue a different puzzle: a = 1 b = 1 a = a a = b ab = a^2 ab - b^2 = a^2 - b^2 b(a - b) = (a + b)(a - b) b = (a + b) 1 = 1 + 1 1 = 2 <--- eh? Where's the logic flaw? Division by zero: (a-b), both sides ? My System Specs
 17 Oct 2009 #6 Barman58 Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu 17,624 posts Newport, South Wales, UK For the original question Count down the digits on left hand 10-9-8-7-6 then add the right hand 6 + 5 = 11 My System Specs
 17 Oct 2009 #7 Tews 64-bit Windows 8.1 Pro 12,905 posts The Southern Hinterlands Quote: Originally Posted by Barman58 For the original question Count down the digits on left hand 10-9-8-7-6 then add the right hand 6 + 5 = 11 Smarty pants!! j/k My System Specs
 17 Oct 2009 #8 Dwarf Windows 8.1 Pro RTM x64 10,420 posts Doncaster, UK For my other puzzles here, this is an indirect clue. Complete the following well-known saying: When in ???, do as the ??? do. My System Specs
 17 Oct 2009 #9 Barman58 Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu 17,624 posts Newport, South Wales, UK Ah I see now said the blind centurion My System Specs
 17 Oct 2009 #10 Dwarf Windows 8.1 Pro RTM x64 10,420 posts Doncaster, UK Was he waving his wooden leg in the air? My System Specs