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  2. The 12 Best STEM Activities for Kids (Using Things You ... - AOL

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  3. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations.

  4. Brain teaser - Wikipedia

    en.wikipedia.org/wiki/Brain_teaser

    A brain teaser is a form of puzzle that requires thought to solve. It often requires thinking in unconventional ways with given constraints in mind; sometimes it also involves lateral thinking. Logic puzzles and riddles are specific types of brain teasers. One of the earliest known brain teaser enthusiasts was the Greek mathematician Archimedes ...

  5. 58 Brain Teasers That Will Leave You Stumped - AOL

    www.aol.com/56-brain-teasers-leave-stumped...

    The post 58 Brain Teasers That Will Leave You Stumped appeared first on Reader's Digest. Solving logic problems boosts brain power, keeps your memory strong, and entertains everyone to no end. See ...

  6. Brain Age Express - Wikipedia

    en.wikipedia.org/wiki/Brain_Age_Express

    The Math edition (Science edition in Japan) deals with numbers and math puzzles. [5] The new puzzles included in this edition are Sum Totaled, By the Numbers, and Multi Tasker. [ 8 ] The Brain Age Check includes High Number, Speed Counting, Serial Subtraction, Math Recall, and Number Memory. [ 9 ]

  7. Riddle - Wikipedia

    en.wikipedia.org/wiki/Riddle

    A riddle is a statement, question or phrase having a double or veiled meaning, put forth as a puzzle to be solved. Riddles are of two types: enigmas, which are problems generally expressed in metaphorical or allegorical language that require ingenuity and careful thinking for their solution, and conundra, which are questions relying for their effects on punning in either the question or the ...