To get her attention. Eragon was trying to speak to her, but she was not listening, being a tree. Saphira was attempting to get her to listen. It worked.
Of all that we know so far, the Menoa tree knows eragon wants to kill Galbatorix, so like he other woman who made Eragon's new sword Brisingr, she takes the fact in Eragon will defeat Galbatorix.
We're not quite sure, even Eragon doesn't know, but I guess we'll all find out in the fourth book!
Anything with a mouth can bite
a tree-though sometimes it whistles in the wind a sleeping dog
burn it burn it burn it burn it burn it burn it
Yes, you can burn out a tree stump by lighting a fire on top of it and letting it burn until the stump is reduced to ashes.
No!
Burn it.
no no no
You burn it
You light it on fire...
Yes.