Yes.
The iron nail would stick to a magnet. Copper is not attracted to magnets.
No, your fingers cannot stick to a magnet. Only iron or steel objects will stick to a magnet. Your fingers do not have those materials, so it will not stick to a magnet.
It is ferrous thus the answer is YES
Yes.
A chalkboard typically has a thin layer of iron beneath the surface. This iron layer allows the magnet to stick to the chalkboard. The magnetic force between the magnet and the iron in the chalkboard is what causes them to attract and stick together.
Metal materials containing iron, nickel, or cobalt will stick to a magnet due to their magnetic properties. Other metals like aluminum, copper, and gold are not magnetic and will not stick to a magnet.
Iron, nickel, & cobalt.
The iron in the mixture will be attracted to the magnet and stick to it. Sulfur, being non-magnetic, will not be affected by the magnet and will remain in the mixture. This can be used to separate the iron from the sulfur.
Wood can't stick to a magnet because it does not have iron or any other sort of magnetizable substance in it.
Some of them have iron so they stick to a magnet.
Iron has magnetic properties and magnets will "stick" to it.
Materials which contain iron, generally. These metals that work with a magnet are generally called "Ferrous" metals