Rational Irrational |
Sequenta |
Almost squared numbers |

New FE |
Odd polynomial |
Parking |

Expanding brackets |
Odd divisors |
Positive product of sums |

Regular Polygons |
5 instead of 1 |
Concetric |

Sum of Digits |
Flip |
Weird equation |

U turn |
Bools and cows |
Equilateral Triangles |

D Flags |
Square multiples of 24 |
Bingo! |

Sum of digits 2020 |
Area of triangle |
Five Primes |

Just Easy Sum |
6-sums |
Lucky numbers |

Money date |
Digital Cubes |
Friendly rooks |

Triangle and Square |
Quadratic |
Lin does shopping |

Lin's Numbers |
Relatively prime with 2020 |
Triangle in Hexagon |

Triangle in hyperbola |
Viet said |
Product of differences |

Zero sequence |
Minimizing Fibb |
Function |

2+1 |
Small triangular numbers |
One three-digit number |

Half of Octahedron |
Product of areas |
2020 Palindromes |

Random answer |
Squared fours |
NRD pair |

Divisibility by 4 |
Tommorow's day |
Cubical squares |

Fractions |
Test |
Just sequence |

Temirlan's cake |
Numbers ratio |
2020 digit |

Sum of four |
Not your business |