If it is for a trivia game, some of the previous are so trivial as to need a web search, i.e. "When was Youtube created?","February 14, 2005", or "How many million units did the original iPhone sell?","6.1"; are not absolutes but estimates: "How many billion years ago did the Big Bang occur?","13.7"; the question makes it ambiguous: "When did Adolf Hitler rise into power?","January 30, 1933", "When did the World War II end?","September 2, 1945" link
; or are wrong: "When was Steve Jobs born?","October 5, 2011".
Questions should be knowable to a decent percentage of people, have a single correct answer, and perhaps at least easier to know than to search online.
Good: Which cocktail is made with vodka, dry vermouth & a lemon twist?
Good: The bible uses what term for loaning at a exploitative interest rate?
Good: Which "dark lord" does the title "Lord of the Rings" refer to?
Good: What is the the prehistoric single continent called?
Good: Finish the meme: "this thread is ____ to my interests"
Bad: What is the 1000th digit of the logarithmic constant "e"?
Bad: What date was Thanksgiving signed into US law?
Bad: What percentage of satellites are launched into in geosyncronous orbit?
Bad: How many languages are spoken in the world?