There really isn't a standard list of questions to ask while looking at a house. You should be interviewing lenders and buyer's agents to find professionals you click with. Your buyer's agent isn't there to answer questions about the house beyond maybe "Do you think this is priced fairly for the condition and location?" Their job is to get you into the house, to help you with negotiations if you submit an offer and to keep the other side moving through the transaction if they aren't on their game.
Your information about the house will come from your own viewing, a seller's disclosure, and the home inspections you pay for if you opt to submit an offer.