Thursday’s Nearly Impossible Quiz….Cool StaffCool StaffPublished: April 11, 2013GettyImagesTumblerPicsShare on FacebookShare on TwitterAbout 150,000 American families had one of these in 2011. What is it?GettyImagesTumblerPicsGettyImagesTumblerPicsloading...ANSWER: A stay-at-home dad. Roughly six million households had stay-at-home moms.