Hawthorn fruit is sometimes used to make jelly, it is not eaten fresh, unless you want to nibble on a couple out of curiosity.

Probably a burning bush. Cut down to low stumps at end of winter. Do not prune again until some years of re-growth has resulted in size being more than you want, then repeat procedure. This way an attractive natural shape (above the stumps) can be maintained between renovations.

I don't have poke that grows at my place but I do have lots of Bittersweet Nightshade (Solanum dulcamara). I remove it from gardens, but I didn't go nuts (as many do) when my kids were tiny trying to nuke it and "protect them" from it. It provided a good teaching tool for berries that look edible but are not. I made sure they knew exactly what it looked like - just seeing it helped reinforce plant safety lessons. Poke can also provide that same learning and teaching experience. FataMorgana

Identifying apples is very difficult at the best of times but with no picture it is impossible ;-) Location is also important to narrow down the hundreds of possibilities.