Answer:
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.
What has roots as nobody sees, is taller than trees. Up, up it goes, and yet never grows?
If Teresa’s daughter is my daughter’s mother, who am I to Teresa?
What can go through glass without breaking it?
When I get closer my tail grows longer, but when I go away my tail leads the way.
I am your mother's brother's only brother in law. Who am I?