How do you ask questions?

I no longer see the questions tab under videos, where can I ask questions?

1. Közösség
2. General Khan Academy Questions

Can you add a line tool to the notepad?

A line tool would be useful for drawing straight lines, drawing a straight line with a mouse is kinda tedious. 

1. Közösség
2. Feature Requests and General Site Feedback

Can you create an option to restart unit tests?

I would appreciate an option to reset a unit test at any time. 100% is required to master a unit and it is quite tedious to have to go through a whole test just because i made a small error. please...

1. Közösség
2. Feature Requests and General Site Feedback