How to use "eighth" in a sentence

I now have only about one-eighth of a litre left.'

On October the 25th - two days before my twenty-eighth birthday - I returned to Blue John Canyon

One eighth of the whole population were colored slaves, not distributed generally over the Union, but localized in the Southern part of it

On the eighth night there was no light in the windows

Five years ago, however, on her twenty-eighth birthday, she began to realize that she had, if she was lucky, ten years left as a show dancer, and she decided to establish herself in the business in another capacity, to avoid being washed up at thirty-eight

Through the eighth and ninth days his voice grew louder