Answer:
What bird can lift the heaviest weight?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
Large as a mountain, small as a pea, Endlessly swimming in a water-less sea.
In Paris but not in France, the thinnest of its siblings.
I have four wings but cannot fly. I never laugh and never cry. On the same spot always found, toiling away with little sound.
This monkey food makes people slip and fall in cartoons.