Answer:
I have eighty-eight keys but cannot open a single door? What am I?
What is something yet nothing, but if you fill it up it will disappear?
What is it that you must give before you can keep it
I know a word of letters three, add two and less there will be.
Some adults still use these to count.
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.