Answer:
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 has roots as nobody sees, is taller than trees. Up, up it goes, and yet never grows?
What is the freedom of birds and the pen of old men?
who do you think you know but sometimes you don't
Inside a great blue castle lives a shy young maid. She blushes in the morning and comes not out at night.
I am rarely touched but often held. If you are smart you'll use me well. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?