Who Are You Again?

This is the 4th episode of Survivor: Jamaica - Second Chances

Challenges
Reward Challenge: Shoulder The Load Three members from each tribe will have a pole across their shoulders. Each round, weight (20 lbs.) will be added to that pole. The decision about which tribe member gets the weight will be made by the other tribe. When the weight becomes too much to bear, the tribe member will drop the pole and be out of the challenge. Last person left standing wins rewardfor their tribe. Reward: 1st Place; Doughnuts and Pastries, 2nd Place; Smaller amount of Pastries Winners: ???

Immunity Challenge: Jungle Relay Contestants must run out into the jungle and complete a series of tasks with a partner. Then, one final task awaits the entire tribe. The first tribes to finish their tasks would win. Winners: ???