I think the most common question asked is “How much longer to your retirement?” or “At what age do you plan to retire?” But, with the advance in technology and the financial climate changing, the more apt question would be “How much do you need to retire?”
Famous and smart celebrities have the privilege of saying “The question here is not at what age I wish to retire but its at what income I want to retire”. If this ring true for you, you’re blessed.