est ▁challeng es ▁Any ▁number ▁of ▁cele brit ies ▁are ▁chosen ▁to ▁take ▁part ▁in ▁the ▁celebr ity ▁ch est ▁challenge ▁to ▁win ▁lux uries ▁for ▁camp . ▁Each ▁challenge ▁involves ▁comple ting ▁a ▁task ▁to ▁win ▁a ▁ch est ▁to ▁take ▁back ▁to ▁camp . ▁However , ▁to ▁win ▁the ▁lux ury ▁item ▁in ▁the ▁ch est , ▁the ▁camp m ates ▁must ▁correctly ▁answer ▁a ▁question . ▁If ▁they ▁fail ▁to ▁answer ▁correctly , ▁the ▁lux ury ▁item ▁is ▁for fe ited ▁and ▁a ▁jo ke ▁prize ▁is ▁won . ▁The ▁lux ury ▁item ▁is ▁" don ated " ▁by ▁a ▁celebr ity ▁from ▁the ▁outside . ▁ ▁Secret ▁mission ▁This ▁is ▁a ▁challenge ▁where ▁some ▁cele brit ies ▁have ▁to ▁take ▁part ▁without ▁alert ing ▁the ▁other ▁cele brit ies ▁- ▁if ▁they ▁are ▁successful ▁in ▁their ▁' m issions ', ▁they ▁are ▁reward ed . ▁ ▁Myst ery ▁box ▁A ▁mystery ▁box ▁sees ▁a ▁box ▁delivered ▁to ▁the ▁cam ps ite , ▁each ▁time ▁containing ▁a ▁different ▁gift ▁for ▁the ▁contest ants . ▁ ▁Im m unity ▁Ch alleng es ▁In ▁Season ▁ 5 ▁imm unity ▁challeng es ▁were ▁introduced ▁for ▁the ▁first ▁time ▁ever . ▁These ▁challeng es ▁were ▁harder ▁than ▁the ▁Bus ht ucker ▁Tri als ▁and ▁the ▁celebr ity ▁that ▁won ▁the ▁challenge ▁couldn ' t ▁be ▁voted ▁out ▁of ▁the ▁j ung le ▁by ▁the ▁public . ▁ ▁Broadcast ▁The ▁show ▁is ▁broadcast ▁Sunday ▁to ▁Th urs day ▁at ▁ 7 . 3 0 ▁pm