Angel Quiz

[Axxis39]

I would like to report a wrong answer, or possible 2 correct answers!

The question is:

On the tree have 15 birds. The hunter shot 1 of the birds buum!. How many birds are left?

Apparently the correct answer is 0. BUT, there IS one bird left... the DEAD one. (all the others flew away, I am guessing, leaving the dead one behind
ergo: 1 dead bird left)

So either the answer is wrong (0) or there are 2 correct answers (0 and 1). However, if the questions was:
".... How many birds are left alive?" Then the correct answer is 0

[Alkaris]

There is no corpse left after BUUUM!

[Axxis39]

Server: S118 (ub38)
Ingame name: Aiune

Well well well, I found another question which has the wrong answer.
The question is Who was the egyptian god of the underworld.

Ofource I answered Osiris, but according to the angel quiz, it was wrong.

Why I say ofcourse I answered Osiris? Well, this is from the encyclopedia britannica:
"Osiris, one of Egypt’s most important deities, was god of the underworld. He also symbolized death, resurrection, and the cycle of Nile floods that Egypt relied on for agricultural fertility."

So, how could I be wrong with Osiris as answer? Or do the angel quiz makers have another source that tells us another egyptian god is god of the underworld? Even Wikipedia stated Osiris is the god of the underworld