Answer:
Tall in the morning, short at noon, gone at night. But I'll be back soon.
The weapon of choice to create the biggest shock.
What is made of wood but can't be sawed?
What has a big mouth, yet never speaks?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
People take me on walks and I run and have fun. What am I?