• Could God create a donut so big that he can't finish it Him/Herself?
• How much wood would a woodchuck chuck if a woodchuck could chuck wood?

Half-life 3?

Why I always lose the bus?

Triggering an existential crisis:
What are you doing with your life?

If in distant future only games generating views will be ones like "Hello Kitty Online", "My Little Pony Ultimate Mobile Adventure" etc - what wil you do?

For the secret of how to get paid for having fun :) (He says as he gets ready for another long day at not-so-fun work, lol)

What do you want to be when you grow up? :D

If you were driving at the speed of light in your car and you turned on your headlights, would anything happen?

HowDoYouFeelAboutPaidMods?

Could we got some more background information about the interview? I'm a youtube Let's Player and even I don't know what kind of questions someone would or should ask in my position.

You like playing with your joystick?

What was the first platform you played on? What was the game?
What are the top 3 most influencing games of the past in his/her opinion? ( 3-5 because 1 is impossible to pick, and most interviewee will freeze if a question like this stops the flow)
What part of your job is the most kind to you? Playing? Reviewing? Interacting with your followers?
How do you pick your next game? (Sometimes community will pick)
if others pick his (her?) games, what was the most surprisingly good game? What was the biggest letdown?
And of yourse you can always go with the clickbait, "controversial" themes like women in video games - AKA what's better? If we chop up our ladies, or deny them the right to be chopped up?-, state of video game industry, E3 2015, etc.
And of course, because people are curious about this: How does his/her average day look like? Fix hours or playing/working, or random? Length of editing? How is this able to fit into a life of a person, how do his environment, family, friends react to these. How can he manage the social media (I guess every youtuber has youtube, G+ [lolno], FB, Twitter) - interact with people, read the posts, share his stuff, get in touch with fans and manage trolls/haters.
So far only these :)

are you planning on streaming Bad Rats: the Rats' Revenge?

What's the difference between a duck?

What is human and why human exist just to get more misery