1) I can not code. Would I be able to use this service?
You must have the knowledge of code to use QuickScraper as we are giving results in HTML.

2) Can I use this to scrape Twitter post data from another person's Twitter account?
Yes, you can but again code will be required there to get data from the Twitter posts.

3) Do/can scrapers, scrape images as well as text data?
Currently, it is not possible to scrape images but it is on our to-do list and hopefully available in the future.

Thanks.