1. An example of a group suffering from challenges of working in a group is the Apollo 13 mission. The mission was initially planned to be a routine lunar exploration, but a combination of technical failures and a lack of communication among the crew resulted in the spacecraft being damaged and the crew being stranded in space. 2. If I could go back in time, my advice to the group members would be to ensure clear and effective communication among all crew members, and to have better contingency plans in place for any potential technical failures. 3. If the group had worked together more successfully, they might have been able to prevent the spacecraft from being damaged or better handle the situation when it occurred, potentially saving the lives of the crew and ensuring the success of the mission.