Colour Sorting Game
Constructing an unsolvable setup in a colour sorting game.
Tiling Strips
Tiling a long and narrow gridded strip with square tiles.
Exact Change
Counting the number of ways to make an exact amount using Canadian coins and bills.
Chicken and Egg
Separating egg-laying chickens from non-egg-laying chickens by keeping them in boxes.
Apothem of a Regular Polygon
Is this method of constructing a regular polygon an approximation? or theoretically accurate?
Halfing 3D Shapes
Cutting 3D shapes parallel to the base such that the top and bottom resulting portions have the same volume.
Polygons in Polygrams
Each regular polygram has a regular polygon at its center.
Cross Sections of Polyhedra
Cutting three dimensional shapes and looking at the possible shapes of the cross section.
Faro Shuffles (Out-Shuffle)
Doing out-shuffles on a deck of n cards.