What is the most important question ever asked?!

What is, or are, the most important question, or questions, ever asked?
Are there any examples in the Bible, and have key words been removed from modern so-called “translations”?!
“The simple believeth every word: but the prudent [man] looketh well to his going.” (Proverbs 14:15)
“He that answereth a matter before he heareth [it], it [is] folly and shame unto him.” (Proverbs 18:13)
“Prove all things; hold fast that which is good.” (1 Thessalonians 5:21)
https://www.azquotes.com/quote/455371?ref=important-questions
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https://www.purebiblesearch.com/
https://www.jw.org/en/library/bible/study-bible/books/
https://www.azquotes.com/quote/856730
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