I'm having a hard time understanding these study guide questions for my The Great Gatsby test. I know most of them but I do not understand these questions, can someone please help me on this? This is only up to chapters 1-5.

1.) Describe Myrtle. What is the irony here?
2.) Why do you think Fitzergald gives this insight to the reader about a character hat has not been introduced yet?
3.) What was the irony of Nick's attendance at the party?
4.) What is the irony of Nick and Gatsby first meeting?

Question

I'm having a hard time understanding these study guide questions for my The Great Gatsby test. I know most of them but I do not understand these questions, can someone please help me on this? This is only up to chapters 1-5.

1.) Describe Myrtle. What is the irony here?
2.) Why do you think Fitzergald gives this insight to the reader about a character hat has not been introduced yet?
3.) What was the irony of Nick's attendance at the party?
4.) What is the irony of Nick and Gatsby first meeting?