Area of triangle |
Zero sequence |
U turn |

Divisibility by 4 |
Numbers ratio |
Tan-Sin |

Oh-matrix |
Tommorow's day |
Test |

Cubical squares |
Sum of four |
2020 digit |

Temirlan's cake |
Odd polynomial |
Triangle in hyperbola |

Odd divisors |
Just sequence |
One three-digit number |

Expanding brackets |
C Sum |
Positive product of sums |

Product of differences |
Friendly rooks |
Function |

Squared fours |
Relatively prime with 2020 |
2+1 |

Random answer |
Sum of digits 2020 |
2020 Palindromes |

Not your business |
Tricky polynomial |
Bingo! |

Switchers |
Weird equation |
Simple expression |

Sum probability |
Sqaure in square |
Similar polynomials |

Equilateral Triangles |
All such |
Money date |

5 instead of 1 |
Small triangular numbers |
335577 |

Permutational Polynomial |
5th power equation |
Bools and cows |

Polynomial without 4 |
Exactly two roots |
Math lesson |

Minimizing Fibb |
Viet said |
6 Apart |

Solutions on the interval |
Arithmetic derivative |
Square multiples of 24 |

Tricky sequence |
Four on a circle |
Diameter |

Novirus |
Convex triangle |
Too much |

Point O |
Sequenta |
MTMTK System |

First geometry |
Special square |
x[x] |

Fancy integral |
Angle chasing |
Fancy limit |

Many digits |
Fill the square |
Parking |

Cool-divisble numbers |
Almost squared numbers |
VNT |

What a function |
!Fancy cubic |
!Fancy polygon |

Orthocenter |
Prime powers |
Progressive sequence |

NRD pair |
Half of Octahedron |
Fancy meal |

More dominos |
Infinite game |
Where is my husband |

ADAD |
Powered Numbers |
Subsets Collection |

ADAD (Duplicate) |
Lucky numbers |
Flip |

Powered Numbers (Duplicate) |
Nice polynomial |
Equiangular Hexagon |

Also palindrome |
D Flags |
Daniyar's Friends |

Total inversion |
Pentagon |
Concetric |

Not fibbo |
6-sums |
New FE |

Unfair Game |
Gineq |
Sharp inequality |

Polynomial Probability |
Interesting functions |
Sharingan |

Digital Cubes |
Simple sum |
Base4 |

0,1,2 polynomial |
Cuboid |
Small triangle |

Lin does shopping |
Lin's Octagon |
Just Easy Sum |

Factorial Factor |
Reverse Product |
Binary Sum |

Sum of Digits |
Discriminant |
Maximum of Minimum |

Regular Polygons |
Sequence |
Fractions |

Five Primes |
Triangle in Hexagon |
Rational Polynomial |

Rational Irrational |
Functional Eq |
Cyclic Q |

Max Area |
Semiperimeter |
Product of areas |

Sum of Squares |
Hold me |
Ordered papers |

Inverse Sum in Triangle |
Simple Altai |
Friends Playing |

Quadratic |
Not constant |
Triangle and Square |

Cube Cube Square |
Seven eleven |
Irreducible Fractions |