Answer:
If you drop me I'm sure to crack. But give me a smile and I'll always smile back.
We travel much, yet prisoners are, and close confined to boot. Yet with any horse, we will keep the pace, and will always go on foot.
What can you share and still have all for yourself?
When set loose I fly away. Never so cursed as when I go astray.
I am a box that holds keys without locks, yet they can unlock your soul.
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?