Answer:
I occur twice in eternity. And I'm always within sight.
There is 10 birds on a branch, a man shot 5 of them. How many were left?
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
They come in many varieties: Red, Black, Dead, and Caspian to name a few.
You do this into someone's ear when you want to be discreet.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.