Simplest known solution to "World's Hardest Easy Geometry Problem"?
32050
"World's Hardest Easy Geometry Problem"
2954
Extended Euclidean Algorithm in $GF(2^8)$?
377
Problem involving many squares and several variables.
151240
Short way for upper triangularization
97900
Project Euler - 34 / Find a mathematical approach for upper bound
152236
What is the optimal path between $2$ fixed points around an invisible obstructing wall?
152476
Unique Perpendicular Geodesic
41205
Help me solve a combinatorial problem
23447
What is the simplest way to generate a dodecahedron?
1269
Problems that become easier in a more general form
109290
How to find the smallest enclosing circle over a set of circles?
116153
The Notorious Triangle Problem
123673
Prove that there exists a shortest distance between two skew lines
146254
A problem on Minima. Proving sphere has minimum surface area for a given volume
92697
Shortest Distance Around Cone
152478
Is there a homeomorphism between the $n$-dimensional cube to the $n$-dimensional simplex that doesn't create hard corners?
80418
The "Easiest" non-smoothable manifold