The phrase "more questions than answers" means that there are more unresolved issues or problems than solutions or explanations available. Full definition
«Today's hearing raised more questions than it answered about why there has been no investigation into the obvious ethics violations by this prosecutor,» he said. (newsday.com)
For example, if a potential client saw that on a business card, she could have been left with more questions than answers in regards to how we could help her company. (entrepreneur.com)
I have many more questions than answers about this next phase nursing while pregnant, and weaning. (lara-mom.com)