Product of areas |
Lin's Numbers |
Quadratic |

Triangle and Square |
Semiperimeter |
Expanding brackets |

Sum of Digits |
Triangle in Hexagon |
Fractions |

Five Primes |
Just Easy Sum |
Digital Cubes |

Product of differences |
Gineq |
New FE |

Not fibbo |
Concetric |
6-sums |

2+1 |
Lucky numbers |
Divisibility by 4 |

Squared fours |
Weird equation |
Parking |

Sum of digits 2020 |
Relatively prime with 2020 |
Area of triangle |

First geometry |
All such |
Square multiples of 24 |

Point O |
Angle chasing |
2020 digit |

2020 Palindromes |
Sum of four |
Money date |

Random answer |
Tricky |
Novirus |

Bools and cows |
Test |
5 instead of 1 |

Not your business |
Cubical squares |
Tommorow's day |

Temirlan's cake |
One three-digit number |
Numbers ratio |

Equilateral Triangles |