Answer:
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
I save lives on the ground and in the air
I go around and in the house but never touches the house
Ten men's strength, ten men's length. Ten men can't break me, yet a young boy walks off with me. What am I?
I am black within and red without; with four corners round about. What am I?
Lynn likes grapes but not potatoes. She likes squash but not lettuce, and she likes peas but not onions. Following the same rule, will she like pumpkins or apples?