{
    "id": 264464,
    "slug": "wanneer-is-cheryl-jarig-quintijn-puite",
    "nstc": null,
    "title": "Wanneer is Cheryl jarig?",
    "subtitle": "+99 andere wiskunderaadsels",
    "collection_title": null,
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    "annotation": null,
    "description": "In april 2015 zette een tv-presentator uit Singapore een wiskunderaadsel op zijn facebookpagina. De hersenkraker 'Wanneer is Cheryl jarig?' ging de hele wereld over en een discussie barstte los. Want, hoe los je deze lastige vraag op? In Wanneer is Cheryl jarig? helpen Quintijn Puite en Birgit van Dalen je de logica van wiskunde onder de knie te krijgen. Ze leren je hoe je een probleem moet oplossen door terug te gaan naar de basis. Hoe pak je een raadsel aan, waar begin je? Echte wiskunde lijkt misschien lastig, maar iedereen kan leren logisch te denken. Aan de hand van hints en duidelijke antwoorden kan iedereen straks lastige raadsels oplossen.",
    "imprint": null,
    "language_code": "dut",
    "original_language_code": null,
    "page_count": null,
    "duration_seconds": null,
    "publication_date_first": "2015-10-01",
    "publication_date_latest": "2015-10-01",
    "cover_url": null,
    "editions": [
        {
            "isbn": "9789461561961",
            "product_form": "BC"
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        {
            "isbn": "9789461562074",
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    "created_at": "2025-09-19T13:04:11+00:00",
    "updated_at": "2025-11-03T00:20:08+00:00",
    "publisher": {
        "id": 1360,
        "slug": "bertram-de-leeuw-uitgevers-bv",
        "name": "Bertram + de Leeuw Uitgevers BV",
        "created_at": "2025-09-19T12:34:41+00:00",
        "updated_at": "2025-09-19T15:07:09+00:00"
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    "contributors": [
        {
            "id": 153732,
            "slug": "quintijn-puite",
            "key_names": "Puite",
            "names_before_key": "Quintijn",
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            "contributor_role": "A01",
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        {
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            "slug": "birgit-van-dalen",
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            "prefix_to_key": "van",
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    ],
    "genres": [],
    "subjects": [
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