Special Question (How many)

How many books do you have?
How many books did you buy yesterday?
How many books will you buy tomorrow?
How many books can you buy today?
How many books would you like to buy today?
How many are you buying now?
How many books are there on the table?
How many days do you work per month?
How many hours do you work per week?
How many children do you have?
How many friends do you have?
How many months did you work there?
How many cups of tea did you drink?
How many glasses of water do you drink per day?
How many rooms are there in the hotel?
How many students are there in the school?

How many students are there in the class?