Maximum number of mutually equidistant points (tetrahedron and extension to $\mathbb{R^n}$)
23596
Proof maximum number of equidistant points for a given dimension
73578
Do infinitely many points in a plane with integer distances lie on a line?
130851
Squaring the plane, with consecutive integer squares. And a related arrangement
82309
Volume of a solid created by an extended tetrahedron
158202
Minimum dimension to hold $N$ points with given distances?
150609
Triangle Inequality of the Cartesian product with Max function
78218
$A \in M_3(\mathbb Z)$ be such that $\det(A)=1$ ; then what is the maximum possible number of entries of $A$ that are even ?
70761
Number of ways to connect sets of $k$ dots in a perfect $n$-gon
73345
maximum size of a $k$-intersecting family of $[n]$
134252
Optimize pairings of two types of points with respect to the maximum distance inside any pair
2954
Extended Euclidean Algorithm in $GF(2^8)$?
37470
Maximum of error in equidistant interpolation
28796
Use the Inclusion-Exclusion Principle to show that for any non-negative integers $m, r, n$ such that $m≤r≤n$...
153054
Euler characteristic for non-convex polyhedra.
40635
Finding Maximum value of consecutive positive integers with constraints
123742
Proving connectedness of the $n$-sphere
39416
The space obtained by identifying the antipodal points of a circle