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Katie Steckles

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Braintwister #69: Backward drops

BrainTwister #63: A 2025 puzzle

BrainTwister #63: A 2025 puzzle

BrainTwister #61: Mark to mark

BrainTwister #59 Seven segments

Barcodes on Magazines

Mathematics

Barcodes: How they could be your latest mathematical party trick

BrainTwister #56: Square sums by four

BrainTwister #54: New year, new numbers

BrainTwister #53: Dividing digits

C0TPTP Beautiful yellow sunflower macro

Mathematics

How Fibonacci numbers give us a neat hack for converting between units

Hand pouring white wine into a glass from a BIB - cardboard bag in box with open tap standing on a table. Close up image. Copenhagen, Denmark - November 2, 2022. ; Shutterstock ID 2221452919; purchase_order: -; job: -; client: -; other: -

Mathematics

The mathematics behind pouring a glass of wine

3D illustration, brain shaped maze. Concept image of study and brain behavior.; Shutterstock ID 2177110871; purchase_order: -; job: -; client: -; other: -

BrainTwister #35: Cube cuts