What do you need in order to feel loved and appreciated?
How important is long-term romance, passion, & sexual intimacy?
How do you envision dividing household chores?
Joint banking accounts or separate? Who pays for what?
What is your target financial "nest egg" goal for retirement?
Where do you see yourself retiring?
All of the above are questions worth asking prior to marriage. However in any long-term relationship one is bound to discover these answers along the way.
Unfortunately there's a big difference between the hypothetical & life.
People evolve on their positions or sometimes change their minds!
Someone who said they wanted to have children early on may decide they don't want them or vice versa. You may have planned to settle in one state and then one of you gets an outstanding job offer to relocate or has a demanding career meaning less time together.
A child may be born with birth defects, one of you is forced to change careers, someone's parents become extremely ill, one of you looses interest in sex and so on....etc
You can do all the Q&A you want prior to marriage but still have no idea of how things will play out once you're hit with the inevitable challenges of life!
Very few married couples can say their marriage is exactly the way they (imagined or planned) for it to be. There is a 50% divorce rate.
No one on their wedding day plans to get divorced!