Teeth Tips and Defining Decades

A Problem Squared - A podcast by Matt Parker & Bec Hill - Mondays

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- When does the new decade start? - The best system for brushing teeth. - How many orders are there for Bec's show? - Top travel tips. Get in touch if you have any more travel tips! https://www.instagram.com/aproblemsquared/ https://twitter.com/AProblemSquared Support us on Patreon: https://www.patreon.com/aproblemsquared