cURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expiredcURL error 60: SSL certificate problem: certificate has expired Weekly Mind Bender - SOLUTIONS FOR LIVING
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Weekly Mind Bender

I come from a mine and am always surrounded by wood. Everyone uses me. What am I?

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Pencil lead.

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