Top network posts
- 17 A finite set of distinct positive numbers is special if each integer in the set divides the sum of all integers within the set.
- 8 An interesting,scary and an old riddle
- 7 A sudoku with only four given digits and some more rules
- 7 Fit the board into the hole
- 7 The Broken Calculator Problem
- 6 Why can't you lose a chess game in which you can make $2$ legal moves at once?
- 6 The physicist's puzzle
- View more network posts →