Set those questions aside and let the new Christian Catholics get to KNOW their faith FIRST.
Unfortunately these questions cannot be set aside. It's the opening gambit to a deeper "truth". Like a Scientologist, one needs to level up their OT's by answering these questions before that truth is revealed.
"First?" What you basis is for assurance of Truth is most primary. You mean get indoctrinated under a false foundational premise without realizing it.
Of course. Cause answering them would cause the whole house of cards to fall and they'd know better.
Better to let them become well indoctrinated before answering questions that would make them think twice.
If their new found faith was worth its salt, it could handle questions like that. If it can't or their shaken by it, it goes to show that the foundation of their faith is weak and really deserves a closer second look.