Does a pound weigh a pound?

Answer 1

No. A pound is a measure of mass whereas the weight depends on the force of gravity acting on that mass.

You can have a bunch of bananas with a mass of 1 pound. Their mass will remain 1 lb whereever, but they will weigh different amounts on the surface of the earth, on the moon (about a sixth), in outer space (near zero), on a neutron star (an enormous amount).