Five multiple-choice questions – set by children – to test your knowledge, and a chance to submit your own junior brainteasers for future quizzes ​Submit a question Molly Oldfield hosts Everything Under the Sun , a podcast answering children’s questions. Do check out her books, Everything Under ...

Source: [Guardian International](https://www.theguardian.com/lifeandstyle/2026/jun/20/why-are-pizzas-round-and-pizza-slices-triangle-shaped-the-kids-quiz)

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