A Riddle a Day -- 78 Logical and Mathematical Puzzles
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    A Riddle a Day -- 78 Logical and Mathematical Puzzles

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    Some riddles and brainteasers to give you a little something to think about each day!

    #brain #brainteaser #fun #guess #humor #logic #math #mystery #puzzles #riddles #solve

    Day 68 -- Riddle

    132 2 6 
                                        
    
                                              
    Always invisible, yet never out of sight. What are they?
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