In WH questions, intonation usually begins to go down on the most important word for the speaker’s meaning.
EXAMPLES

What’s the time, please?
How do I get to the sports equipment?
Where’s the toilet, please?

Notice that intonation in WH questions can change when we are talking about old information. The first time we ask somebody’s name, we ask: What’s your name? This is new information. But if we then forget the name and ask again, we ask: What’s your name? because we are asking about old information that has already been given. Intonation goes up to show that this is something we have already shared.