This brainteaser, which was designed by Doug Engel, may have you spinning in circles trying to figure it out. The first challenge is to take it apart. Then for added frustration, you can put it back together. Solution included.
Object: Separate, then reassemble the 4 rings
Dimension: 2 1/2 in x 2 1/2 in x 2 1/2 in
Difficultly Level: 1 (out of 6)