Answer:
What has 4 fingers and a thumb, but is not living?
This type of food, which is a fungus, is often served on supreme pizza, in spaghetti and in a particular "cream of" style soup
Environmentalists want to keep this from drying.
What has no hands but might knock on your door, and if it does you better open up?
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
I am a band that does not perform, sing, or act. What am I?