That is a really bad typing test but I usually type at 90-110 wpm. The highest I've scored on a test is something like 135, but my average score is about 100. I will answer your questions.
Yes.
How and when did you learn to do so?
Gradually, between the time I was 12 and 16. I mostly learned by just typing a lot while playing MMOs. My speed gradually increased as well. From 30-40 wpm when I was 11, to 70 wpm when I was 16, to ~100 right now (I am 21).
"Home row" is bullshit, just type however you want. My friend types with only 4 fingers and his "record" speed is 150 WPM. I type with 6 fingers and I never use "home row". Everyone has different finger and hand sizes, so obviously the exact same technique will not work for everyone.
As practice, type song lyrics of songs you like while you're listening to them and try to keep up with the singing.
Last edited by Clockwork8; Jun 21, 2012 at 08:55 AM.