You just don't get it. We're in two different worlds I suppose. Every decision you make involves a multifaceted process within your brain. That process involves collecting data (either from memory or from sensory inputs like vision or hearing), then the data gets analyzed and compared to already acquired knowledge to see if there's an automatic solution readily available. If you lack the proper experience for the task, then there's likely no automatic solution and you'll have to consciously work it out, aka...learning mode.
Your concrete answer of right or wrong is not an absolute. It's a signal response produced by the brain, a thought, and it says "This is right." So at this point you think you are right because your brain is telling you to think that way.
No need to get too carried away with terminology simply because the word "feel" or "think" doesn't sound concrete enough for you. The world we sense around us is only as real as our brains make it, and it's seldom as absolute as black or white. We think. Even when we know something 100%, we are merely thinking we know it 100%....we feel like we know it 100%.