If i sound a bit cranky... its because i didn't get much sleep this week

1.) Yes they do I researched it Here are the web pages: http://en.wikipedia.org/wiki/Harley_Quinn & http://en.wikipedia.org/wiki/Deadpool

2.) She knows some but shes not a master at it 

3.) No she dose not know who they are and in my post it clearly states "She traveled around the world in search of people like her and found the academy" 

4.) She died it