Answer:
What bird can lift the heaviest weight?
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter.
I have legs but never walk, I may have flowers but no soil, I hold food but never eat.
Put into a pit, locked beneath a grate, guarded through the night, yet it still goes out.
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?