The ring of truth

It granted the wearer of the ring a powerful ability, the power to always be correct. Essentially, the ring alters reality itself in order to make any statement by the wearer of any question accurate. The ramifications will be anywhere from practically unnoticeable to life changing, also one important thing is that while the ring alters reality to make the wearer correct, nobody will notice the changes. By that extent, if he or she wear the ring on their left hand, then they would be unaware of the changes like everyone else. If the wearer puts it on his right finger, however, then they will be able to realize that things are changing. "Oh my, I forgot to tell them about how to use the ring. Oh well, I just thing turns out to be okay." the old man says himself as it's too late.

Meanwhile, you and your girlfriend are walking around the mall to see any interesting stuffs to shop. Then, later on Jane leans you the clothing store where she loves most, can't blame her through. After you both enter the store, your girlfriend finds some dresses to impress on the date. "So babe, which dresses do you think you should buy?" you ask.

"I don't know, honey. They looks so nice but I don't know which one should I choose." your girlfriend replies.

"Yeah, I know. But hey at least, you got the nice golden ring I give you." you says.

"Of course, John. It's really nice of you that you bought me the ring." she smiles.

"Don't mention it, Jane. So, which hands did you put the ring on?" you ask as she raises her...