Here are the questions and short answers based on the given sentences:
Sentence: Sophie is happy.
Question: Is Sophie happy?
Short Answer: Yes, she is.
Sentence: James isn't bored.
Question: Is James bored?
Short Answer: No, he isn't.
Sentence: My friends aren't hungry.
Question: Are your friends hungry?
Short Answer: No, they aren't.
Sentence: Our classroom isn't hot.
Question: Is our classroom hot?
Short Answer: No, it isn't.
Sentence: My sister is funny.
Question: Is your sister funny?
Short Answer: Yes, she is.
Sentence: My mum is clever.
Question: Is your mum clever?
Short Answer: Yes, she is.