How many ways can you join regular pentagons?
27:03
How many 3D nets does a 4D hypercube have?
18:27
How to mathematically hang a picture (badly).
19:44
Making efficient Platonic and Archimedean shapes in a kaleidoscope
23:29
Why does Vegas have its own value of pi?
13:46
What's wrong with this cube? - Solving Qiyi's Clover Cube Plus
24:09
The bubble that breaks maths.
22:34
The Game of Set (and some variations) - Numberphile
21:29