Triangle in Hexagon |
Sum probability |
Parking |

Sum of digits 2020 |
C Sum |
Angle chasing |

Expanding brackets |
Area of triangle |
2+1 |

Friendly rooks |
Divisibility by 4 |
Relatively prime with 2020 |

2020 Palindromes |
NRD pair |
5 instead of 1 |

Random answer |
Squared fours |
Cubical squares |

Temirlan's cake |
Fractions |
Not your business |

Sum of four |
Five Primes |
Just sequence |

Test |
Tommorow's day |
Oh-matrix |

2020 digit |
One three-digit number |
Numbers ratio |