I realize this is an old post, but just reading this makes me feel so much better to know that there are others who struggled like I did when younger and had to show my work. I describe it as if something just clicks in my brain - I can't really go through the logical steps to explain how I got the answer, I just know it. It's extremely frustrating and now I have a DS9 and a DS6 who are going through the same thing. DS9 has been struggling for several years with writing and explaining his work. DS6 has been able to do logic puzzles correctly since he was 3 - but if I asked him which of our 2 cats was which, he would have a hard time with that!