There are lots of kinds of hard riddles—silly ones, weird ones, ones that make you groan when you hear the answer. But they all flex our brains and challenge us to think in a new way.
Logical Science Riddles for 8th to 12th Grade Kids: Riddles are puzzles or brain teasers that often take the form of a question, statement, or rhyme. They typically present a problem or a mystery ...
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