I'm hoping the answer to the first one isn't HEXAGON, though I suspect it is. You could (just about) describe a cube as a regular hexahedron, though...
Thank you very much for your answers.
I hope the answer isn`t hexagon aswell as it would not be right.
Maybe they do have the amount of letters wrong.
I`m also wondering if it could be some sort of posh Oxo lol, but trying to think of other letters to go with it is proving difficult.