A container for mixing two liquids and the like includes: a container; a pouring cylinder that is provided extending upwards on a top portion of the container; an upward facing step portion that is formed on the container so as to be positioned below the pouring cylinder; a cap whose inner circumferential surface is screwed onto an outer circumferential surface of the pouring cylinder; a small container that is placed on an inner side of the cap; a cuttable first sheet that forms a bottom surface of the small container; a removable cylinder that is provided at a bottom end of the cap and is interposed between the cap and the upward facing step portion, and that is removed from the cap prior to the cap being screwed down onto the pouring cylinder; and a first cutter that is provided on the container so as to face a bottom surface of the small container that is placed on the inner side of the cap, wherein the small container is made to approach the first container as a result of the cap being screwed down onto the pouring cylinder, and the first sheet is then cut by the first cutter.