More Hexaflexagons

http://www.youtube.com/watch?v=paQ10POrZh8&feature=em-uploademail-new
Vihart video Hexaflexagons 2

Hexaflexagon celebration Website:  http://www.puzzles.com/hexaflexagon/

Previous Years:  http://www.puzzles.com/hexaflexagon/aroundtheworld.html

Martin Gardner's post on Hexaflexagons 1956:  http://www.puzzles.com/hexaflexagon/aroundtheworld.html

Can you make a Julia Set that looks like a Cat?

http://blogs.scientificamerican.com/observations/2012/09/26/fractal-kitties-illustrate-the-endless-possibilities-for-julia-sets/

How many Squares?

Solve a Rubik' Cube in Fewest Steps

26 steps from any starting point

I love Logic Puzzles

I love Logic Puzzles, but they can be hard/frustrating at times!

Here is a simple (as in not complex, but as for easy or hard, I'll leave that up to you to decide)one to play - can you figure out how to always win this game?

Three Bags

How about this one?

Coin Weighing