Answer:
It can pierce the best armor and make swords crumble with a rub, yet for all its power It can't harm a wooden club.
What has roots that nobody sees, and is taller than trees. Up, up it goes, and yet it never grows.
What can you catch but not throw?
My first is a creature whose breeding is unclear. My second, a price you must pay. My whole can be found in the river of Time and refers to events of today.
What can be big, white, dirty and wicked?
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?