are these SENTENCES correct? Are these sentences the same? Thanks.
Have we a house ? = Have we got a house? = Do we have a house? (?)

Question

Answer

Have we a house ? = NO
Have we got a house? = YES
Do we have a house? = YES

Answer

"Do we have a house?" is the proper form.

"Have we a house?" is very outdated grammar (by a couple of centuries).

Answer

Do we have a house? That is the most correct way to say that.

Answer

Have we got a house? and Do we have a house?

Note: Have is more formal than Have got

You should tell your friend I've got a house because he's your friend and You should tell your boss I have a house because he's your boss :D