OK I AM DEAD SERIOUS ABOUT THIS!!!!
if you want to ask questions that every single boy will get and not one of the girls will get,,, then print out copies of these 2 spatial ability tests. They are incredibly easy if you are a guy,, but ive known girls who have looked at them for hours and had no idea.
http://www.skeptic.com/eskeptic/05-03-15images/mental-rotation-test.gif
http://images.google.com/imgres?imgurl=http://images.encarta.msn.com/xrefmedia/aencmed/targets/illus/ilt/T629016A.gif&imgrefurl=http://encarta.msn.com/media_461547595/Mental_Rotation_Test.html&h=328&w=556&sz=21&hl=en&start=1&um=1&tbnid=hACNrBpHLH8-lM:&tbnh=78&tbnw=133&prev=/images%3Fq%3Dmental%2Brotation%2Btest%26svnum%3D10%26um%3D1%26hl%3Den%26safe%3Doff