Kidnapper

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: How can you add 9 to become 6? (No subtracting).

Question: What goes through towns and over hills, but never moves?

Question: "The Captain is my brother," testified the soldier. But the Captain testified he didn't have a brother. Who is telling the truth?

Question: In a house of Kardak's family each brother have a sisters as double as their brothers and each sister have brothers as same as their sister. How many brothers and sisters in Kardak's family ?

Question: How do you make the number ONE disappear?