The middle one looks like s coffee plant.

The big one with the white flowers is a peace lily. These are all tropical shade loving plants, but a dark room is not enough light. Putting it in a sunny window may burn it up. It likes regular watering instead of dry soil. It hates overwatering. The one I got to live I watered about every week or 10 days, moist not soaked, and it was in a corner of a room with big windows. The arrangement is beautiful.

Peace lily will flower in shade in a living room.

I could be wrong: the middle one could be gardenia

I’d say the middle one is a gardenia

anybody know the plant in the last picture? I have had 0 luck with that one. i was told it may be a dieffenbachia but when i looked at pics i didn't find one similar to it

The last plant could be Spathiphyllum floribundum 'Mini'.

I believe that is it. Thank you