He's my encyclopedia

My husband knows a lot of things. I can always ask him about anything and he always knows the answer. Well, not exactly always. There were times, rarely, when he doesn't know the answer, but at least he knows a little bit about the things that i ask. Even when i ask him the stupidest of the stupid questions, he will answer it. He's just like a walking encyclopedia to me. ^_^
(i'm not sure about the term 'walking encyclopedia', but i'm sure you know what i mean)