yes, as long as they can chew them, they love them!
polos
no because their legs are to long
There are zebra foals and pony foals, so yes.
Within 1 to 3 weeks of age. It mainly depends on how much milk the mare produces.
The plural of polo is polos. As in "these polos are minty".
Foals
No they have women's polos and men's polos
At that age, foals should be weaned and able to eat solid food. There should be feed for foals of that age at your local feed/tack store. You can also consult your vet to see if they think your specific foal needs a different diet for some reason.
Foals are newborn horses.
Foals are young horses but is also a term used for other baby animals.
Yes, mare's (female horses) can have foals.
Many horses love peppermints. Just make sure not to feed them too many.