I'm usually long, round and black, if you l**k me, I can stain your tongue; I'm the juice of a root. What am I

Question

It's a brainteaser

Answer 1

Black licorice.

The flavoring comes from the anise plant.

Answer 2

i have no clue im guessing p**p hahah lol idk

Answer 3

A ball point pen.

Answer 4

licorice -

A Mediterranean perennial plant (Glycyrrhiza glabra) having blue flowers, pinnately compound leaves, and a sweet, distinctively flavored root.

The root of this plant, used as a flavoring in candy, liqueurs, tobacco, and medicines.

Answer 5

licorice?

Answer 6

~~~I have to go with black licorice too!~~~