How long does it take vs how long it takes

The architect's model - do you know how long it takes to construct a building on average?

Who knows how long it will take?

what the procedures are for obtaining this information and how long it will take?

When can we call and how long will it take?

When you write on your photographs, how long does it take?

All right, but make sure you know how long it takes to do it.

Did they even ask you how long it takes to complete?

If we don't cross here, can you estimate how long it takes?

Once they were in the chamber, might I know how long it takes for them to emerge?

Once we filled up the form, we don't know how long it takes to do the rest of the paperwork.

I don't care how long it takes--just get it done!

Can you tell me how long it takes to write an essay?

They said they don't mind how long it takes to finish the deck, just as long as it's built well.