Holy Grail of ROP

The ROP God has tasked King Arthur with finding the function called "holy_grail". You must aid him on his quest! But be warned, the way is guarded by a text-based sorcerer whom loves old British comedy movies, and just to make things harder, you're going to have to find "holy_grail" 3 times! ...Or was it 5 times? Use your pwning knowledge to answer the sorcerer's questions and ROP your way to the holy grail and bring this holy relic home for the glory of England!

HINT: sh doesn't exist in camelot, but they love BASHing

Connect to the problem with: nc ctf.battelle.org 30042