Cyclic Areas |
Expanding brackets |
All such |

Fancy meal |
C Sum |
Positive product of sums |

Regular Polygons |
Max Area |
Concetric |

Unordered triplet |
Gineq |
Sequenta |

Sum of Digits |
Uneven numbers |
These Triangles |

Lin's Octagon |
Ordered papers |
Triangle in Hexagon |

6-sums |
Irreducible Fractions |
Not fibbo |

Four equal angles |
Sum probability |
Quadratic |

Lucky numbers |
Semiperimeter |
Seven eleven |

D Flags |
!Fancy cubic |
Weird equation |

Triangle and Square |
Five Primes |
Just Easy Sum |

Lin does shopping |
Fractions |
Viet said |

New FE |
Friendly rooks |
Bingo! |

5 instead of 1 |
First geometry |
Function |

Area of triangle |
Squared fours |
Half of Octahedron |

Money date |
Divisibility by 4 |
Sum of digits 2020 |

2+1 |
U turn |
Parking |

Equilateral Triangles |
Angle chasing |
Not your business |

Bools and cows |
Relatively prime with 2020 |
Triangle in hyperbola |

Oh-matrix |
Point O |
Product of differences |

Just sequence |
Many digits |
2020 digit |

2020 Palindromes |
5th power equation |
x[x] |

One three-digit number |
Sum of four |
Random answer |

Temirlan's cake |
Test |
Cubical squares |

Tommorow's day |
Small triangular numbers |
Numbers ratio |