Problems solved: 20

6-sums	Weird equation	5 instead of 1
2020 digit	Squared fours	Just sequence
Friendly rooks	One three-digit number	Divisibility by 4
Sum of four	Money date	Random answer
Area of triangle	2020 Palindromes	Cubical squares
Numbers ratio	Test	Tommorow's day
Oh-matrix	Temirlan's cake

Games

Under construction