Answer:
When I get closer my tail grows longer, but when I go away my tail leads the way.
Just head and foot yet never tires of dancing.
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.
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
Has no feet, but travels far. Is literate, but not a scholar. Has no mouth, yet clearly speaks.
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?