Credits:
Div2A (Make a Trianle): Idea by Zlobober, development by vintage_Vlad_Makeev
Div2B (Equations of Mathematical Magic): Idea and development: Glebodin
Div1A (Oh Those Palindromes): Idea and development Endagorion, development by Andreikkaa
Div1B (Labyrinth): Idea and development by qoo2p5
Div1C (Dwarves, Hats and Extrasensory Abilities): Idea and development by mingaleg
Div1D (Candies for Children): Idea by Endagorion, development by Flyrise
Div1E (Lasers and Mirrors): Idea and development by mingaleg
Div1F (String Journey): Original idea by GreenGrape, solution by vintage_Vlad_Makeev, development vintage_Vlad_Makeev and GreenGrape
Other problem analysis coming soon.