Answer:
What can you break even if you never pick it up or touch it?
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
People buy me to eat but never eat me. What am I?
What has a head and a tail, but no body or legs?
Some will use me, others not. Some have remembered, others forgot. For profit or gain, I'm used expertly. I can't be picked off the ground or tossed into the sea. What am I?
What language does a billboard speak?