Answer:
Big as a biscuit, deep as a cup, but even a river can’t fill it up. What is it?
What has roots as nobody sees, is taller than trees. Up, up it goes, and yet never grows?
How far will a blind dog walk into a forest?
A reaction to being spooked that takes its name from waterfowl
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
Be sure to shout for its answers are weak, but there is no language it cannot speak.