Problems solved: 30

Weird equation	Friendly rooks	Just sequence
2+1	Equilateral Triangles	C Sum
Squared fours	2020 Palindromes	Fractions
Positive product of sums	Viet said	Product of differences
Many digits	Divisibility by 4	Relatively prime with 2020
Lin does shopping	2020 digit	Uneven numbers
Random answer	Just Easy Sum	Temirlan's cake
6-sums	Parking	Oh-matrix
Lucky numbers	Cubical squares	Numbers ratio
Tommorow's day	Test	Sum of four

Games

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