NO, that is not but if you copy the poem word for word or even take a verse of that poem that would be plagiarism. However, you should be careful about using long or very well known titles.
No. If you take all the words from a story and write a poem from it, that is plagiarism. However, you should be careful when copying other author's work.
Yes, the one(s) you write yourself.
This is called plagiarism. It is illegal in most countries. Please write the paragraph yourself.
It is plagiarism, according to this wikipedia definition I plagiarized off of the internet. Plagiarism is defined in dictionaries as "the wrongful appropriation, close imitation, or purloining and publication, of another author's language.
Fairly soon after humans began to write, plagiarism could be identified.
If you took any information from the materials read, and used it; it is plagiarism.
You write it yourself! Copying someone else's work is plagiarism, and it is illegal. It is also not going to have anything about your hobby - it will be about somebody else's hobby.
Depends what you mean. If you see a video and you want to write about how and why the video was created, and/or about the people in the video then no, it's not plagiarism. If you see a video and then write a book which describes in text the storyline in the video, then yes, that's plagiarism. And might also be considered breach of copyright, which is a criminal offence.
No, that would be plagiarism.
Write your own work.