HDMI cable with adapter or USB C cable

Unfortunately not directly. I also have a Mac. I had to ask around in a stationary electronics store to buy the right cables and adapters.

A 24 inch screen with a resolution of 1920 x 1080 pixels has far too few pixels to display a sharp image, I would return this screen and recommend a model with at least 2560 x 1440 pixels at 24 inches, this allows small texts to be displayed sharply, for example this model would be more suitable if a sharp image is desired, this monitor is much better, via USB-C it can charge a notebook with up to 90 watts. Dell U2520D (2560 x 1440 Pixels, 25 ") It depends on the notebook, but as a rule 65 watts via USB-C would probably be sufficient for most.

Yes, Display Port cable and USB cable A-C.

Hello Unfortunately, I cannot answer this question. In the description, this device is equipped with a USB hub. Then it would not be possible. It would be better with a cable via Mini Displayport.

The stand as shown in the illustration is included.

No, only a USB-C to USB3 cable. The U2422HE model also comes with a USB-C to USB-C cable, but not with this model.