Call to service II: Josephs reward for service - JSS1 Christian Religious Studies Past Questions and Answers - page 1

He liked Joseph because he was honest and hardworking. 

Potiphar had a wife who was a bad woman. She tempted him to have sex with her. When he refused she told lies about Joseph and he was put in prison. 

Yes 

He said that both dreams had the same meaning and were God's way of revealing what He was about to do. The seven healthy cows and the seven healthy heads of grain represented seven years of great abundance in Egypt. The seven thin, ugly cows and the seven thin heads of grain represented seven years of severe famine that would follow.

The king made Joseph “the Prime Minister” he was charged with the responsibility of planting, harvesting and storing grains against a sever famine that he had predicted.