They should use what ever toilet their body was made for!
A Plunger
You always should after you use it.
Yes, every nationally, every race, and every person should use toilet paper.
Usually, most people will only use one type of toilet paper and then maybe a baby wipe as well. You will have to find the toilet paper that is right for you.
For sealing the toilet base, it is recommended to use a waterproof silicone caulk.
yes
Yes. Dahvie once admitted in a live press report that he was, in fact, a transvestite/crossdresser.
Depending on where you are and what you're doing, you should go to the nearest toilet or restroom.
For a standard toilet installation, it is recommended to use a wax ring that is a standard size of 3 or 4 inches in diameter. This will help create a proper seal between the toilet and the floor drain.
Ask a grown up or sit on the toilet and let pee or poop come out and then their should be a handle or something and push or pull it, and wash and clean yourself.
Unless it is a very strange arrangement, turning off the toilet on the first floor should only shut off the water to that toilet. It should have no effect on the upstairs shower.
The toilet flange should be about 12 inches away from the wall when installing a new toilet.