I made this to help my team with our YC interview
ycrand.com
ycrand.com
We were running through interview Q's we found online and I thought it'd be best to have us answer them randomly, with a 10 second timer and running for 10 minutes each time - just to add some realism to the simulation.
We've never interviewed before, so we don't know too much about what actual questions will come up. What we have found though is that these questions help us hone our pitch a lot. Regardless of a YC interview, being able to answer these questions confidently will probably benefit your mission.
Good luck with the interview!