Answer:
What is lighter than what it is made of?
A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note: 710 57735 34 5508 51 7718 Currently there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
What stays the same size no matter how much they weight?
I always run but never walk, I sometimes sing but cannot talk, No head on which a hat to place, You always look me in the face.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.