Brain teaser

Do you remember the first entries of this blog? We started with a brain teaser. Some months have passed and I don't want your brain to fall asleep, so let's awaken it with a new problem to solve. (Let's see who is the first one to find the solution. You can post it in comments.) Here we go: A bottle and a cork cost together $25 and the bottle costs $20 more then the cork. How much does each cost?