BrainTwister #105: Interesting numbers By Christopher Dearlove Facebook / Meta Twitter / X icon Linkedin Reddit Email Advertisement Sign up to our weekly newsletter Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with New Scientist events and special offers. Sign up More BrainTwisters Your weekly dose of logical and mathematical puzzling BrainTwister BrainTwister #108: Expressionist 7 January 2026 BrainTwister BrainTwister #107: Prime products 31 December 2025 BrainTwister BrainTwister #106: Indices behaving oddly 24 December 2025 See all BrainTwisters
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More BrainTwisters Your weekly dose of logical and mathematical puzzling BrainTwister BrainTwister #108: Expressionist 7 January 2026 BrainTwister BrainTwister #107: Prime products 31 December 2025 BrainTwister BrainTwister #106: Indices behaving oddly 24 December 2025 See all BrainTwisters
