Abstract: A puzzle block, comprising: eight sub-blocks each having a plurality of faces, the plurality of sub-blocks being stacked one upon another to constitute a cylinder or prism, a plurality of single-unit prints, each being applied on the predetermined faces of the sub-blocks, a plurality of double-unit prints, each being applied on the predetermined two abreast faces of the two adjacent sub-blocks for connecting the sub-blocks, such that the sub-blocks are foldable to change the puzzle block into different forms; wherein the prints on the predetermined faces of the sub-blocks individually or jointly constitute different patterns when the puzzle block is folded to different forms and wherein magnets of opposite polarities are embedded into surfaces of a plurality of predetermined pairs of the sub-blocks.

Abstract: The invention relates to an information carrying device. The information carrying device comprises a device body formed by a puzzle, which can be folded into a plurality of different shapes, wherein the information carrying device further includes a USB storage unit, which can be hidden and thus is invisible from outside when the puzzle is in a first shape, and can be revealed and is ready to interface with an information reader when the puzzle is in a second shape.

Abstract: The invention relates to an information carrying device. The information carrying device comprises a device body formed by a puzzle, which can be folded into a plurality of different shapes, wherein the information carrying device further includes a USB storage unit, which can be hidden and thus is invisible from outside when the puzzle is in a first shape, and can be revealed and is ready to interface with an information reader when the puzzle is in a second shape.