Answer:
What is full of holes, but can still hold a lot of water?
I am the outstretched fingers that seize and hold the wind. Wisdom flows from me in other hands. Upon me are sweet dreams, my merest touch brings laughter
There are several different kinds, but the one you pick doesn't do its job. What is it?
A dagger thrust at my own heart, dictates the way I'm swayed. Left I stand, and right I yield, to the twisting of the blade.
Long and slinky like a trout, never sings till it's guts come out.
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?