For Question 22, the most suitable response to the statement "It was very sunny and hot. We had a bit of a heat wave." is:

C. What was the weather like there?

This response directly relates to the information given about the weather.

For Question 23, the most suitable response to "Could you do me a favor, please?" would typically be something like "Sure, what is it?" or "Of course, what do you need?" However, the options for this question are not visible in the provided image.