Abstract: A system of pyramid puzzles provides sets of puzzle-pieces formed as identical spheres tangentially attached together in one or more row(s) on a square grid pattern, configured to provide interesting challenges with surprising solutions in assembling pyramids The puzzle system includes two families of sets of matched pairs of puzzle pieces for assembling pyramids of two corresponding equilateral shapes: triangle-based and square-based. For the triangular-based pyramid, puzzle-pieces are configured from single or plural attached rows of spheres forming rectangular outlines that each form an inclined layer in the pyramid. For the square-based pyramid, puzzle-pieces are configured in generally L-shaped orthogonal forms in matched pairs that each combine to form a horizontal layer in the pyramid. The sets can range from relatively simple with as few as four puzzle-pieces to larger sets of any desired size, increasing in progressive steps, in accordance with the teachings of the invention.

Abstract: A receptacle (20) having a pocket (29) in which a spout assembly (24) is stored prior to placing it in an open mode in which the receptacle's content is dispensed. Spout assembly (24) includes a spout proper (25) to which a body formation (27) having a chamber (39) in communication with spout proper 25 and by apertures (41) to receptacle (20). An arm (65) connects the spout proper (25) with a floor (37) of pocket (29). Floor (37) includes a frangible area (48) formed by scoring (49) and which is broken from floor (37) upon introducing a breaking member (47) into the frangible area (48). Body formation (27) includes breaking member (47). Body formation (27) also includes an endless peripheral flange (52) around it and from which an endless lug (54) depends.