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Tricky Riddles with Answers to Test Your Critical Thinking Skills

Think you've got what it takes to solve some seriously tricky riddles? We've got a video packed with brain-busting riddles ...

Sunday Puzzle: Name's the Same

NPR's Ayesha Rascoe plays the puzzle with Phil Feller of Durham, North Carolina, and Puzzlemaster Will Shortz.
Scientific American

Math Puzzle: Falling Through

Some say the reason most manhole covers are round is that a circle cannot fall through a smaller circular hole. Which of ...