What would it take for wordpress to email users a random question

What technologies would have to be implemented into a website that w开发者_开发知识库ould automatically generate questions and send them to my users email? Similar to stackoverflow.com and vark.com except the questions would come from a data base that I created not other users. I have no Idea even what language could do this... please help.

PHP and MySQL would do the job just fine. It would work for the rest of the site as well.

www.w3schools.com - check it up for tutorials.

Basically, you need a database of users' emails, a database of questions and an email system. You don't even need to make it web-based. Look at Python's email or PHP's mail function. In conjunction with basic randomization and SQL, you're set.