Is lunch ready convert in to indirect speech?

The question "Is lunch ready?" cannot be directly converted into indirect speech because it is a question, not a statement.

To express the question indirectly, you would need to use a reporting verb like "asked" and rephrase the question into a statement. Here are a few options:

* "He asked if lunch was ready."

* "She inquired whether lunch was prepared."

* "They wanted to know if lunch was ready."

The specific indirect form you choose will depend on the context and who is asking the question.