Not really...it can be activated anywhere, the window disappears when you press the back button and you're back to where you were before.
LOLLLLLLLLLLLL 4 out of 5 stars? Try asking, "what does 2+2 equal?" and it'll start rambling off something about Whyte notation for the classification of steam locomotives. You simply can't rate it so high if you can't ask it simple things like that.
Didn't try that before .__. But I just tried what is the cube root of 19 and it answered correctly...so it really depends.