Exploring Magnets

Rohan believes a magnet pulls every metal thing, since he's seen it pick up nails and pins. He brings the magnet near his mother's steel spoon and an aluminium bottle, but neither sticks. Is Rohan's belief correct?

Ravi says a magnet will pull any metal — a coin, an aluminium spoon, a copper wire, all of them. His sister says it will not. Who is right?

Meera has a bar magnet with one end North (N) and the other South (S). She says if the magnet is cut in half, one piece will have only N and the other only S. Is Meera right?

Aditya has a compass and says its needle will always point towards wherever his house is, since a compass is built to show the way. His sister says the needle only knows one direction. Who is right?

Two fridge magnets look identical. One holds an iron clip through 3 sheets of paper, the other only through 1 sheet. Neha says this definitely means the first magnet must be heavier. Can that conclusion be drawn?

A magnet pulls in an iron pin. Divya says this means the pin is also a magnet — why else would it be pulled? Her brother says that does not follow. Who is right?