It's one snake.
Yes there is a snake with two heads without tail, however such snakes are rarest of the rare.
When snakes are born with two heads, they fight each other for food.
A snake is normally only born one head. Snakes can occasionally be born with two heads if two embryos merge inside the egg. Such snakes usually do not live long.
Could be a lot of snakes. Better to look at the head. In North America, snakes with oval heads are most likely a non-venomous snake. Diamond heads are most likely venomous. The only exception is the coral snake.
People catch snakes and keep the snake heads to sell to places of business or individual consumers. Private collectors also look into buying snake heads and sometime the snake's skin.
It is possible, but extremely rare. If a snake has two heads, that means four eyes instead of two. I don't know if a snake can have more than two eyes on one head, but yes, having more than two eyes is possible for a snake.
It is a genetic flaw or mutation. Snakes do not naturally have 2 heads
My best answer to me could be: One snake that are cat-snakes, with two heads. I think that you might be on LSD or something man
yes there has been many case's where snakes has been born with 2 heads
there are many snakes that have been seen with two heads most of which are usually caused by a genetic disorder but the yellow lipped sea krait is one that has a head at either end
People eat snakes in various parts of the world. although I can't see there being a lot of meat on the head of a snake.
As a general rule of thumb, non-poisionous snakes usually have oval shaped heads and round eyes. Venomous snakes tend to have more angular heads and eyes.Nearly impossible to answer here, many snakes have "oval" shaped heads and most of the harmless snakes have round pupils. One venomous snake that would fit this category is the Coral snake.