Bools and cows |
Equilateral Triangles |
Friendly rooks |

Bingo! |
2020 Palindromes |
Sum of four |

Money date |
Not constant |
Function |

Not fibbo |
Solutions on the interval |
!Fancy cubic |

Sum probability |
Expanding brackets |
Sequenta |

Fractions |
Rational Irrational |
Simple expression |

Just sequence |
Negative roots |
Product of differences |

Weird equation |
2+1 |
Zero sequence |

One three-digit number |
Seven eleven |
2020 digit |

Lucky numbers |
6-sums |
Just Easy Sum |

Temirlan's cake |
Tommorow's day |
Numbers ratio |

Cubical squares |
Angle chasing |
Cemicirlces |

These Triangles |
Triangle and Square |
Area of triangle |

Not your business |
Four equal angles |
Regular Polygons |

Triangle in Hexagon |
Concetric |
Base4 |

Smallest fraction |
Powered Numbers (Duplicate) |
Cool-divisble numbers |

Almost squared numbers |
Positive product of sums |
Odd divisors |

Small triangular numbers |
Difference of squares |
Sum of Digits |

U turn |
NRD pair |
Divisibility by 4 |

Squared fours |
Relatively prime with 2020 |
Five Primes |

Uneven numbers |