What you've been waiting for all of your life! Or for all of May. No, not that bar of exquisite dark chocolate. It's, Women Who Code & SF Ruby Mixer! Come help each other and learn together!
Go to Project Euler site, and create an account. Then start learning!
* Even if you've never coded before, feel free to stop-in and get started. We can start you on something basic. You'll want a good text editor (google "sublime" or "textmate" or "notepad++") and have Ruby installed on your machine.