Whether or not a mill is an example of a wheel and axle is a matter of semantics. It certainly would contain examples of a wheel and axle.
A classic example of a wheel and axle is a bicycle. The wheel rotates around the axle, allowing the bike to move forward efficiently. Another example is a screwdriver, where turning the handle (wheel) rotates the rod (axle) to drive a screw into a surface.
You could say a bike wheel is a wheel and axle. Also a doorknob is a wheel and axle.
A tire
Can opener
A cycle
yes of course
No, a pencil is an object used to apply carbon lead to writing materials.
Yes, a wheelbarrow is an example of a device that uses both a wheel and axle. The wheel helps in reducing friction and allowing easy movement, while the axle serves as the central support structure for the wheel.
No it is not.
yes
Yes.