Problems solved: 42

Point O	Minimizing Fibb	Half of Octahedron
Small triangular numbers	Friendly rooks	Sum of digits 2020
Expanding brackets	U turn	Squared fours
Area of triangle	Divisibility by 4	Function
Relatively prime with 2020	Equilateral Triangles	Square multiples of 24
Weird equation	Bools and cows	Just sequence
Parking	5 instead of 1	2+1
One three-digit number	2020 Palindromes	Numbers ratio
Product of differences	2020 digit	Friends Playing
Ordered papers	Fractions	Tommorow's day
Oh-matrix	Sum of four	Solutions on the interval
Bingo!	Cubical squares	Random answer
Test	Money date	Temirlan's cake
Triangle in hyperbola	Product of areas	Not your business

Games

Under construction