Looking for ready-to-use critical thinking puzzles for upper elementary? This pack delivers 20 classroom-tested items in multiple formats—number/shape patterns, analogies, logic chains, fraction comparison, elapsed time, probability, coordinate moves, inequalities, and calendar logic—designed for reasoning, not speed. Use as bell ringers, centers, weekly brain stretch, or sub-day enrichment. Includes a separate Answer Key for quick checks and student directions that promote showing work