All questions and answers have to be paraphrased as well, without changing the meaning. As mentioned, values will also have to be changed.
In summary, please do the following:
1) Change values for questions and answers (so workings in answers have to reflect the change in values in the questions)
2) Paraphrase questions – so it will not show on a plagiarism checker
3) Paraphrase answers – so it will not shown on a plagiarism checker