Preferably 12' by 12'. Horse's don't like confined places as it is, even if it is as big as 12' by 12', so any smaller will stress them even more than a large 12' by 12' stall will.
You can keep a horse in a livery yard,a back garden may not be big enough.
=I depends on how big the Horse is.==1.) Has to have a doorway that the horse can't bang it's head on=
A horse can have as big area for grazing just don't make it too small. I keep my horses in about 1-2 acres and my horse is healthy.
No, but there is a public toilet outside. The big rocking horse is only for looking around and does not need a toilet!
Plenty.
Keep a steady supply of water and some kind of tasty hay, keep a shelter nice and dry for them, and be nice to them. Then they won't want to run away.
For that you would probably need to ride a 13hh pony to 15hh horse.
The cinch size will vary from horse to horse, measure the horse where the cinch should be and that'll give you a good idea of what size to get.
Do you mean (How big is a giraffe's cage in a zoo)If you mean that, I will answer you by drawing it:--------------------------------------------------------------
Well, the horse's shadow would be as big as the horse at certain times of the day...
Because:They are big birdsThey need them to keep warmThey need them to keep coolThey need them to shade their skin/youngThey use them for display
Well, generally no, but if your garden is a big paddock, then yes. Horses need the space to run around to keep fit, although you will probably be riding them as well. They also need room to stretch their legs. If you want a horse then I would suggest keeping him or her at a riding school. And if you want to ride the horse, make sure you have riding lessons before.