Good Riddles

Question: I fly and never rest. What am I?

Question: I have keys but no lock, you can enter but not leave what am I?

Question: What is yours, but only others can use it?

Question: what happens when you are born

Question: The Duke of Riddleton has been kidnapped. The police have identified 3 suspects, all of which had motive, and opportunity to do the deed. Their names are Andrew, Jason, and Shawn. All of them claim that they didn't do it, but Jason and Shawn seemed nervous wile being questioned. There was a note left behind, with the following description: 1491011. Who kidnapped the duke?