No, you do not need a passport inside the US but you will need a valid picture ID.
No.
No.
As both Maine and Alaska are U.S. States, you do not need a passport to get there.
The state of Alaska is a part of the United States of America and therefore you are not required to have a passport when travelling there.
Yes, you need a passport to fly internationally.
Yes, you need a passport to fly internationally.
Yes, you need a passport to fly out of Tijuana.
Hawaii is a US state - if you don't need a passport to go to Nevada or Michigan, you don't need a passport to go to Hawaii.
Yes, babies need a passport to fly internationally.
Yes. You need a passport to fly anywhere.
Yes, children need a passport to fly internationally.
Yes, children need a passport to fly to Mexico.