@solderandchaos there is also the controversial "How many planets are there in the solar system?", "How would you cut the sun in half?", "Why is the sky blue?", "How far is outer space?", "What is zero multiplied by infinity?"...or added or even multiplied by...
There are things like "How do I know what you have told me is true?", "What is the sound of one hand clapping?", "What is between being and not?", "When should I remain silent?" or "If a lion could speak would we understand them?"
