Good Riddles and not even Riddles

What part of a rabbit never stops moving?

What has a head and four legs ,but only one foot?

What thing has 13 hearts?

One knight a king and a queen went on a boat ride the king jumped off the boat the queen sailed away on the row boat, who was still on the boat?

What starts with T ends with T and has T inside of it?

Feed me and I live, give me a drink and I die. What am I?

If you eat me, my sender will eat you. What am I?

What travels around the world while staying in a corner.

I have a key, but no locks I have a space ,but no room. You can enter ,but you can't go outside. What am I?

What do an Island and the letter T have in common?