This puzzle is a core component of a Professional IQ Intelligence Test, specifically measuring your Spatial Visualization and Mental Rotation skills. Training your brain to rotate objects mentally is a powerful form of Brain Fitness that supports Cognitive Health and Healthy Aging. The logic follows a consistent counter-clockwise rotation of the blue triangle: Step 1: In the initial state, the blue triangle is positioned on top. Step 2: Rotate the shape 90 degrees counter-clockwise; the blue triangle moves to the left side. Step 3: Rotate another 90 degrees counter-clockwise; the blue triangle is now at the bottom. Step 4 (Answer): One more 90-degree counter-clockwise rotation places the black triangle on the right side, in a horizontal position. Conclusion: Based on this pattern, option a is the correct answer. Stay Sharp Tip: Think of it like turning a steering wheel! By following the "blue part" as it moves from top, to left, to bottom, it naturally lands on the right for the final step. Practicing with high-quality Intelligence Quizzes like this helps keep your mind active and ensures your spatial memory remains sharp as you age.