Problems solved: 60

Subsets Collection	Product of differences	5th power equation
Point O	Cool-divisble numbers	Lin's Octagon
x[x]	Odd divisors	Flip
D Flags	Sum probability	Simple expression
Fancy meal	U turn	Viet said
Expanding brackets	First geometry	Base4
Digital Cubes	Factorial Factor	Seven eleven
Weird equation	Function	Many digits
Sequenta	Minimizing Fibb	Not fibbo
Just sequence	C Sum	Parking
Just Easy Sum	6-sums	Sum of Digits
Irreducible Fractions	Squared fours	Sum of four
Triangle and Square	Money date	Temirlan's cake
Sum of digits 2020	5 instead of 1	Area of triangle
Square multiples of 24	2+1	Equilateral Triangles
One three-digit number	2020 digit	Relatively prime with 2020
Small triangular numbers	Lucky numbers	Five Primes
Bools and cows	2020 Palindromes	Numbers ratio
Cubical squares	Bingo!	Divisibility by 4
Tommorow's day	Random answer	Test

Games

Under construction