Translation is often tricky. I'm stuck with the Polish word kilkanaście, which literally means few-teen. It is used to describe an amount more than ten, but less than 20 (or including 20, it's hard to say, the next "about-the-amount" word means twelve-and-a-few.
Is there an English word describing that amount, or similar amount?
The reason for the existence of such a word, I think, is the fact that when counting on hands, it describes the amount which I can't handle using my hands alone.