Sudokuki is a graphical SUDOKU game. It solves even the most difficult sudoku grids for you. It can generate a sudoku, play sudoku, and print a sudoku.
Dumbbell Pal is a program that shows over 50 dumbbell exercises by muscle groups. Note that this program is currently only available in Dutch, but the exercises should be clear nonetheless.
performance monitoring toolkit and API
A programming language with the ease of a scripting language and the performance of a compiled language.