Answer:
I sit in a corner while travelling around the world.
I am the only thing that always tells the truth. I show off everything that I see. I come in all shapes and sizes. What am I?
I can be cracked, made, told, and played. What am I?
I am a caribbean shape that makes ships disappear
Never ahead, ever behind, yet flying swiftly past; for a child, I last forever; for an adult, I'm gone too fast. What am I?
I tell people to be careful when handling boxes.