Answer:
What is bought by the yard by is worn by the foot?
Though I have neither legs nor feet, my use is for to go; Although I cannot speak, I tell what others want to know
What is pronounced like one letter, written with three letters. And belongs to all animals?
What surrounds the world, yet dwells within a thimble?
We are five little objects of an everyday sort. You will find us all in a tennis court.
People take me on walks and I run and have fun. What am I?