What's the difference between [noun] + の and [noun]+ な?

Question

For example, suppose I want to say "It's a weird thing". Can I say "hen na koto desu.", and "hen no koto desu"? What is the difference?

｢変なことです｣ vs. ｢変のことです｣

Answer 1

You use な with na-adjectives and の with regular nouns to make them "adjectival". 東京の学生 tokyo isn't an adjective, it doesn't behave like one. The の just acts as a connector to describe 学生.