What Am I Riddles

Question: A box without hinges, key or lid, yet inside, gold treasure is hid. What am I?

Question: I run out of battery but never need to be changed what am I?

Question: Those who make this item, don't use it. Those who BUY this item, have no need for it. But those who USE this item, never see it. What is the item?

Question: I am the universe's complex elegance, I am everywhere...I am created through suffering, inspiration, joy, and even despair. I am born as an idea, and then presented to the human eye. However, unlike living things, I can never die. What am I?

Question: Although I am still, in families, I run. I continue to live on in a living one. As one continues to draw breath, I will not rust. However, when one stops drawing breath, I will become mere dust. What am I?