What am I?

It might not seem like there’s enough information to solve these logic riddle at first—but that’s part of the fun!

I am black when you buy me and red when you use me.

When I turn gray, you know it’s time to throw me away.

What am I?

ready for the answer?

Charcoal

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In how many minutes?

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How can you boil an egg?

How can you boil an egg?

If you’re ready to give your brain a good workout and an excellent power boost, try this!If you have a 7-minute hourglass and an 11-minute hourglass, how can you boil an egg in exactly 15 minutes?To boil the egg in exactly 15 minutes, follow these four steps....

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What was her solution?

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