INFAMOUS catchphrases such as ‘I don't believe it!' and ‘It is what it is' have become some of the nation's favourite sayings. But do you know who said it first? Express.co.uk gives you 15 catchphrase ...

This is for answers to "Who Knew?" questions from September 2025. For October's questions and answers, click here. Here's where you can find a recap of the "Who Knew" question and the answer that is ...