Hello and welcome to the forum. To be honest, to be able to gve you definitive answers to all these would a) take me whole day (or nearly) and would need several photos of each specimen and a scale (a ruler is best) in each photo. However, I have looked at your photos and these jump out at me
I think these are all flints with modern grazing trails of modern gastropods (sea snails)
As 1, but in one of them there may be the mould left where a small shell has been.
the white nodule is of interest but I can't tweak the photo.
no fossils that I can see.
Photo6, 7, 8, 9
Oh, sorry - all stones from what I can see