Which future government sent you?
If this changed the future wouldn't it stop you from going back? Now that they've invented time travel they would have solved the grandfather paradox right? If you're not here to change the future, how could your mission accomplish anything?
Does today's old technology frustrate you? What do you take for granted in the future?
What do we do now that seems barbaric to future society?
When do we go to Mars?
Have we met aliens yet?
Can we make warp drives?
Have you ever been to space?
Have you ever been to YOUR future? What was it like?
What are the future regulations on time travel? What are the potential repercussions?
Are you allowed to talk to future civilians about your mission, or is it classified to them?
What is the average life expectancy in the future?
What do we do that we don't know is unhealthy?
Do you have cybernetic implants?
Did you need to get vaccines or take precautions before travelling to a time with (hopefully) more diseases?
What disasters should I prepare for in the near future?
What languages do people speak in the future?
What is a social fad from your time?
What are the robots and AI like?
Can you upload information straight to your brain?
Where do future people get energy from?
What is the environment like in the future?
What animals are extinct by your time? Do future people travel back to capture specimens and repopulate species? Do you have dinosaurs?
What is privacy/surveillance like in the future?
Are there still developing countries?
How many people are on Earth and/or in total?
What do you eat in the future?
Are many people genetically modified? Are there challenges for people who aren't?
Do you still read books?
Do you still have memes?
Do you have 3D holograms for everything?
Do you use voice control for computers, keyboards, or something else?
What does historical media focus on most in our time period?
What is different about future and present fiction? (Movies, etc). Do you find our films entertaining, or slow paced and cliche?
Has Star Trek aged well?
What is politics like? Is the world united? Is there corruption? Bureaucracy?
Are people much different socially than now?
What have we not invented yet, but really should have?
Where are you from?
Did we ever get Half Life 3?
Do people need jobs to survive?
What do we have wrong about our history?
Is eating meat from animals illegal? Can you synthesise meat?
What are future people more intolerant of than us?
What types of buildings do people live in? Are they separated from nature, or more like ours?
How do people travel?