I don't like snakes.  They are elongated, legless, carnivorous reptiles of the suborder serpentes.
They are scary especially the poisonous one.
Yes, and some retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca
Are there any countries that don't have snakes.
I think almost all do.  They are considered squamates.
I thought iceland, Hawaii, greenland and hawaiian islands, don't have snakes ?
That may well be true.  I do not know.  I know that reptiles arose about 310 million years ago
From dinosaurs ?