Skeptics stackexchange is for challenging unreferenced notable claims. [FAQ]
We are not to "let this site become SE Answers, the dumping ground for idle curiosity and pointless speculation". [FAQ: Must all questions be notable? ]
However, it is often the case that even in questions that state a notable claim that they wish to challenge or have examined, the question includes additional questions that are not challenging a notable claim (or at least not one that has had evidence of its notability provided in the question). These side-questions are only related to the notable claim because they are about the same topic. They often are not themselves challenging notable claims.
The notable claim
As I understand it, the claim being challenged is that "life happened by chance, as claimed by evolutionists". A notable source is provided for this claim (and many alternative sources could have been used to demonstrate its notability).
The relevant questions
"Did life happen by chance, as claimed by evolutionists?"
"Likewise, if scientists cannot succeed in creating life in the laboratory, then what evidence is there that life could create itself by chance?" (This is basically a re-phrasing of the first one.)
The off-topic question
"If life could spontaneously exist by chance, then why have scientists not been able to create life in the laboratory with controlled experiments?"
This question is not challenging or asking for examination of a notable claim, at least not one that has had its notability demonstrated in this question.
Once a notable claim and evidence of its notability has been presented, does that give the asker leeway to ask whatever they want about the subject in general?