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Difficulty: EasyPuzzle Details

If you have a very tight nut on a bolt, what is the best way to free it:

Heat it, cool it, either, neither?

[Ref: ZDBK]

Show Hint Show Answer Print Puzzle
Direct Link: www.brainbashers.com?ZDBK

Hint: Do things get larger or smaller when you heat them?


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Are the horizontal lines parallel?

 



 

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