1. I am too tired to do my homework.

2. I am too tired to read the books.
3. I am too tired to do the project.
4. I am too tired to do the paperwork.
5. I am too tired to finish my homework.
6. I am too tired to finish reading the book.
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Are they grammatical? If there are any errors, would you correct them? Thank you.

All are fine. Nice!

Yes, all of the sentences you provided are grammatically correct. However, I would make a slight modification to sentences 5 and 6 for clarity:

5. I am too tired to finish my homework.
6. I am too tired to finish reading the book.

By adding "finish" in these sentences, you are conveying that you are too tired to complete the task in its entirety. Without "finish," it may imply that you are too tired to start the task. This modification ensures the intended meaning is clear.