Is there any profitable business that can do with minimal captial?

Service activities (which are labor-intensive) can be profitable. Typically, the trade-off is between capital and labor. The key ingredient in any profitable business is intellectual property, which is the jist of the old saying: "build a better mousetrap and the world will beat a path to your door." (Yes, I know that isn't the exact quote but the important message is valid.)

realestate investing you dont need any money just time