Here are different Wh-questions words:
What ...? Who....? Where ....? When ....? Which .....? Why ....?
How....? How many ....? How much ....? What for ....?
Here are several examples:
1 What's your name?
What is (1) your name (2)?
2 Who is your technical teacher?
Who is (1) your technical teacher (2)?
3 Where's the bathroom?
4 Where's the museum?
5 When is the drinking party?
6 Which book is mine?
7 Why are you late?
8 How tall are you?
9 How much are the tomatoes?
To change Wh-questions (direct questions) using the be verb to indirect questions, the word order changes. The be verb now comes after the noun and we add in front of the wh-question word one the following expressions --- could you tell me, do you know...
Indirect question formation - polite questions
1 Could you tell me what your name is?
Could you tell me what your name (2) is (1)?
2 Do you know who your technical teacher is?
Do you know who your technical teacher (2) is (1)?
3 Can you tell me where the bathroom is?
4 Do you know where the museum is?
5 Would you mind telling me when the drinking party is?
6 Do you know which book is mine?
7 Could you tell me why you are late?
8 Can you tell me how tall you are?
9 Can you tell me how much the tomatoes are?