Can you solve the MAGNET RIDDLE? ft YouTube CEO Susan Wojcicki

before you showed the tools, i thought of:

1) hanging the bars from a string would allow the magnet to orientate towards earth's magnetic field
2) holding the magnet next to a copper cable under the influence of a current would apply a force to it due to induction? this does not require ferromagnetic metals.
also the magnet could induce a current and jam certain electronic devices near it.
3) if you have a hot oven, heat the blocks to 1043°C to make use of https://en.wikipedia.org/wiki/Curie_temperature


btw good luck breaking a solid piece of bulk metal with a mallet.