"brain-teaser" meaning in English

{
  "forms": [
    {
      "form": "brain-teasers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "brain-teaser (plural brain-teasers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Georgian terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Games",
          "orig": "en:Games",
          "parents": [
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A complex riddle or puzzle."
      ],
      "id": "en-brain-teaser-en-noun-J2rORSPK",
      "links": [
        [
          "riddle",
          "riddle"
        ],
        [
          "puzzle",
          "puzzle"
        ]
      ],
      "translations": [
        {
          "code": "hy",
          "lang": "Armenian",
          "roman": "gluxkotruk",
          "sense": "a complex riddle or puzzle",
          "word": "գլուխկոտրուկ"
        },
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "glavoblǎskanica",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "feminine"
          ],
          "word": "главоблъсканица"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "nǎojīn jízhuǎnwān",
          "sense": "a complex riddle or puzzle",
          "word": "脑筋急转弯"
        },
        {
          "code": "da",
          "lang": "Danish",
          "sense": "a complex riddle or puzzle",
          "word": "hjernegymnastik"
        },
        {
          "code": "da",
          "lang": "Danish",
          "sense": "a complex riddle or puzzle",
          "word": "hjernevrider"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "a complex riddle or puzzle",
          "word": "aivopähkinä"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "masculine"
          ],
          "word": "casse-tête"
        },
        {
          "code": "gl",
          "lang": "Galician",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "masculine"
          ],
          "word": "quebracabezas"
        },
        {
          "code": "ka",
          "lang": "Georgian",
          "roman": "tavsaṭexi",
          "sense": "a complex riddle or puzzle",
          "word": "თავსატეხი"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "feminine"
          ],
          "word": "Denksportaufgabe"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "feminine"
          ],
          "word": "Kopfnuss"
        },
        {
          "code": "is",
          "lang": "Icelandic",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "feminine"
          ],
          "word": "gestaþraut"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "masculine"
          ],
          "word": "rompicapo"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "feminine"
          ],
          "word": "łamigłówka"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "feminine"
          ],
          "word": "rozkmina"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "masculine"
          ],
          "word": "quebra-cabeças"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "golovolómka",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "feminine"
          ],
          "word": "головоло́мка"
        },
        {
          "code": "sw",
          "lang": "Swahili",
          "sense": "a complex riddle or puzzle",
          "word": "chemsha bongo"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "a complex riddle or puzzle",
          "tags": [
            "neuter"
          ],
          "word": "metallpussel"
        }
      ]
    }
  ],
  "word": "brain-teaser"
}

{
  "forms": [
    {
      "form": "brain-teasers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "brain-teaser (plural brain-teasers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Georgian terms with redundant script codes",
        "en:Games"
      ],
      "glosses": [
        "A complex riddle or puzzle."
      ],
      "links": [
        [
          "riddle",
          "riddle"
        ],
        [
          "puzzle",
          "puzzle"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "hy",
      "lang": "Armenian",
      "roman": "gluxkotruk",
      "sense": "a complex riddle or puzzle",
      "word": "գլուխկոտրուկ"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "glavoblǎskanica",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "feminine"
      ],
      "word": "главоблъсканица"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "nǎojīn jízhuǎnwān",
      "sense": "a complex riddle or puzzle",
      "word": "脑筋急转弯"
    },
    {
      "code": "da",
      "lang": "Danish",
      "sense": "a complex riddle or puzzle",
      "word": "hjernegymnastik"
    },
    {
      "code": "da",
      "lang": "Danish",
      "sense": "a complex riddle or puzzle",
      "word": "hjernevrider"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "a complex riddle or puzzle",
      "word": "aivopähkinä"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "masculine"
      ],
      "word": "casse-tête"
    },
    {
      "code": "gl",
      "lang": "Galician",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "masculine"
      ],
      "word": "quebracabezas"
    },
    {
      "code": "ka",
      "lang": "Georgian",
      "roman": "tavsaṭexi",
      "sense": "a complex riddle or puzzle",
      "word": "თავსატეხი"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "feminine"
      ],
      "word": "Denksportaufgabe"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "feminine"
      ],
      "word": "Kopfnuss"
    },
    {
      "code": "is",
      "lang": "Icelandic",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "feminine"
      ],
      "word": "gestaþraut"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "masculine"
      ],
      "word": "rompicapo"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "feminine"
      ],
      "word": "łamigłówka"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "feminine"
      ],
      "word": "rozkmina"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "masculine"
      ],
      "word": "quebra-cabeças"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "golovolómka",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "feminine"
      ],
      "word": "головоло́мка"
    },
    {
      "code": "sw",
      "lang": "Swahili",
      "sense": "a complex riddle or puzzle",
      "word": "chemsha bongo"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "a complex riddle or puzzle",
      "tags": [
        "neuter"
      ],
      "word": "metallpussel"
    }
  ],
  "word": "brain-teaser"
}