Can remember these:
What type do we fly
How many seats
How many Cabin Crew and why
What type of engines
What is Bypass
What kind of wings (anhedral/dihedral) why?
What is radiation fog
What is advection fog
Why RyanAir
What was the hardest part of your flight training
Tell me about a time when you showed captaincy
All I can remember pt, hope it will help you
Edit:
These questions seems to come up quite often, so if I were you I would know the answers to all of them:
latest pilotjobs. com/ryanair-pilot-interview.html