Good Riddles

Question: I am a teacher, yet I am not a human nor a robot.

Question: Four hang, four sprang, two point the way, two to ward off dogs, one dangles after, always rather dirty.

What am I?

Question: 1 man walks in to a bar another man walks into a bar the third man ducks. Why did the third man bring a duck?

Question: What looks like a duck but is red?

Question: You are in Italy for a holiday. You book a hotel. You go a room. It has only a pair of socks, a light bulb, a TV, a remote, a bag and a phone. You search for the English Channel. How do you find it?