If I got a shoe from wal mart and needed another size and I don’t have the receipt for it will they let me exchange the shoe for another size without the receipt?

Yes with id you can only exchange for same shoe for correct size and if not exchange only can get store credit and nothing more loaded on a walmart gift card

Yes they will however most people buy those in pairs. I hope you have two shoes!

Cal and ask at customer service

Oh sure they will, they have one of the best return policies there is.

Yes they will