FIELD: entertaining games. SUBSTANCE: puzzle has liquid storage vessel comprising bowl with bottom, handles with internal channel and rim. Rim has at least one drinking nipple, false nipples and openings arranged circumferentially of bowl. Internal channel has inlet and outlet, as well as secrete opening. Bowl is provided with partition wall dividing it into lower and upper parts and with two additional channels. Lower part of bowl has volume equal to or greater than that of upper part. First additional channel has inlet end arranged near bowl upper part bottom at upper part edge opposed to vessel handle. Outlet end of first additional channel is connected to outlet of internal channel in handle. Second additional channel has inlet of second additional channel arranged on top of lower part of bowl near the edge of lower part opposed to vessel handle, and inlet of second additional channel connected to drinking nipple. Inlet end of internal channel is positioned at bowl bottom. Vessel is further provided with additional secret openings arranged in second additional channel and on top the lower part of bowl. Puzzle may be used both for entertaining and learning of physical laws. EFFECT: increased entertaining and teaching effect due to complicated way of discovering its secrecy. 1 dwg
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