http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Miscellaneous/2012_October_2#oil_lamp
http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Humanities/2012_September_20#City_planning_and_trees_that_line_the_street
http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Miscellaneous/2012_September_20#renting_a_car
http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Miscellaneous/2012_August_22#Map_colours
http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Miscellaneous/2007_April_4#Total_United_States_Workforce