Not exactly. The thinking happens when you try to make the right question. The solution is usually just knowledge that you don't want to memorize or some steps that should be following rules you don't want to memorize.

Think UI coding, for instance. If "thinking" means putting UI components one after another in a way a given language and framework likes it, sure. But I would argue that is not thinking at all. It's just formalization of thought that already happened in somebody's mind.