Answer: Yes and No.
Explanation: Fun is when you're having pleasure or amusement in something. Enjoy is taking delight in something. However, it is quite hard to determine a different since if you're having fun, you must be enjoying yourself. And if you're enjoying yourself, you must be having fun.
(I would say they are somewhat synonyms to each other).
Answer:
True. a rhetorical question is a question that doesn't require an answer, and usually when someone asks "You're kidding me?", or "Are you kidding me?" it's usually said in exasperation, where there is no answer required.
Answer:
I learned that today is January 26th 2021. I learned today is Tuesday. I also learned that today is a weekday.