Riddles 7

Riddle 1: What can travel around the world while staying in a corner?

Riddle 2: What has a head and a tail, but no body?

Riddle 3: What has an eye but cannot see?

Riddle 4: What gets wetter and wetter the more it dries?

Riddle 5: There was a green house. Inside the greenhouse there was a white house. Inside the white house there was a red house. Inside the red house there were lots of babies. What is it?