The photos in post #58 -
The bone shaped thing in front of the dog we call dog biscuits.
The one called biscuits for humans - we have nothing looking like that under any name.
The round brown things with the white layer between we call cream biscuits - two biscuits sandwiched together with a sort of solid cream filling.
The bowl of things with the serrated edge - they're crackers, specifically Ritz crackers. There are other crackers as well, different shapes with slightly different flavours and often with things added such as poppy seed crackers, chive crackers etc.
The difference between biscuits and crackers is that biscuits are sweet, crackers are savoury and are usually marketed as for eating with cheese.