MEDIUM RIDDLES

Why does the teacher wear sunglasses when she comes to the class?

What language does a billboard speak?

It runs and runs but can never flee. It is often watched, yet never sees. When long it brings boredom, When short it brings fear.

What is it?

What jack has a head but no body?

To you, rude would I never be, Though I flag my tongue for all to see.

What am I?

No matter how smart you are, there is one thing you will always overlook. What is it?

A father's child, a mother's child, yet no one's son. 

Who am I?

A father and son were in a car accident where the father was killed. The ambulance brought the son to the hospital. He needed immediate surgery. In the operating room, a doctor came in and looked at the little boy and said I can't operate on him he is my son.

Who is the doctor?

How can you physically stand behind your friend as he physically stands behind you?

One is to three as three is to five and five is to four and four is the magic number.

What is the pattern?