add exercises and books solutions to an educational website

We want a data entry service for a specific website. Data is about problems and their solutions, exersices, ...etc it will be added to this section: [login to view URL] its up to you to choose the exercises and solutions major or even the school subject, meaning the questions and exercises may be from school materials, university materials, programming issues and exercises, or whatever, the priority is to the exercises you have, not you copy from internet,, you can also take exercises from PDF books and outlines, and there is no more than such kind of books or outlines. In the attached file is an example of a group of exercises that we have collected and coordinated in a Word file to give you an example of questions that you can add to the site (the examples in the attached file are issues in the field of programming, but you can add problems in any other scientific discipline, mathematics, statistics, physics, chemistry, ... And dozens of other specialties) Required to enter 2,500 exercises and problems solvings. Just scientific issues, no theoretical questions We will guide you when starting work, And if we continue with the freelancer himself, we will ask him for projects to add new data as soon as he finishes the first project. Please provide me with your offer + areas in which you will add questions and exercises within