Answer:
What force and strength cannot get through. I, with a gentle touch, can do. Many in the street would stand. Were I not a friend at hand.
You can spin, wheel and twist. But this thing can turn without moving.
The one who makes it, sells it. The one who buys it, never uses it. The one that uses it never knows that he’s using it.
Always old, sometimes new. Never sad, sometimes blue. Never empty, sometimes full. Never pushes, always pulls.
What is the freedom of birds and the pen of old men?
What language does a billboard speak?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?