Digital Cubes |
Lucky numbers |
Math lesson |

Angle chasing |
Viet said |
Bingo! |

Not your business |
Weird equation |
Small triangular numbers |

Bools and cows |
Equilateral Triangles |
Zero sequence |

5 instead of 1 |
U turn |
Area of triangle |

2+1 |
Sum of digits 2020 |
Divisibility by 4 |

Relatively prime with 2020 |
One three-digit number |
Squared fours |

Money date |
2020 Palindromes |
Random answer |

Sum of four |
Tommorow's day |
Oh-matrix |

Cubical squares |
2020 digit |
Test |

Numbers ratio |
Temirlan's cake |
Odd polynomial |

Solutions on the interval |
Expanding brackets |
Square multiples of 24 |