Answer:
What do you use to hoe a row, slay a foe, and wring with woe?
The itsy bitsy teeny weeny yellow polka dot variety is quite popular.
What lies in a tunnel of darkness. That can only attack when pulled back?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
What measures out time. Until in time all is smashed to it?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.