CodeCombat - a coding game where you use programming language to move your hero and reach your goal. Click on "Get Started" and "Create Individual Account" using Google.
Logo - Logo is a Computer Programming Language. This site has lessons for learning it at a high level.
Puzzles
Figure Ground - move the puzzle pieces to match the goal
Solitaire Chess - a small board with only a few pieces - watch the Tutorial video
Pegs - this is a popular puzzle found in many truck stops. Send me a message telling me how many pegs you left on the board. I wonder if anyone will be able to leave just 1 peg.