What Am I Riddles

Question: I rule the ends of the universe. I control its laws. I reign the galaxy. The start of space is the start of me. The end of the universe is the end of me. The name of my slaves bring mighty terror to you. The universe wouldn't work if it wasn't for me. What am I?

Question: Without me you're blind but once you touched in the right place you can turn me on. What am I?

Question: I'm the one that gives you information, I'm the one that lets you have the ability to control yourself, I'm the one that stores all memories and without me you'll be dead in a instant. What am I?

Question: What has no beginning, end, or middle?

Question: Something longer than a camel but shorter ever than a Cup?