There are two ways to interpret the original question, "can you cook an egg only using durect sunlight in any place of our solar system ?":
1. Is there any location in our solar system where you can cook an egg using only direct sunlight? (Without using lenses or other materials)
2. Is cooking an egg using sunlight as the only source of heat possible in all locations within our solar system? Or only in some locations?
To which the answers are:
1. Yes
2. No

The problem here is the colloquial use of "any" vs "all".
An unambiguous version of the question requiring the "No" answer would use the word "all".

As such, you should have asked for clarification here instead of responding, since this is undecidable in colloquial speech.
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