Logic Riddles

Question: What is it that no one wants to have, but if he has it, he doesn't want to lose it?

Question: What is in the valley of the glass doors. Listen to the words the houses have no roofs or doors, it just has walls. So what's in the valley of the glass doors?

Question: One female dog goes in and there are no other dogs in there so why did dogs come out?

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?

Question: Theres a good barbor and theres a bad barbor, The good barbor has a bad haircut and the bad barbor has a good haircut. Why is that...?