Answer:
This sparkling globe can float on water. It is light as a feather, but ten giants can't pick it up.
Proof you've done your time in school
What sevenletter word becomes longer when the third letter is removed?
What fiveletter word, no matter how you pronounce it, is always pronounced wrong?
When this is found in a road you are forced to make a decision.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.