Best riddles for teens

A man while looking at a photograph said, "Brothers and sisters have I none. That man's father is my father's son." Who was the person in the photograph?

August was the name of a puppy who was always picking on larger animals. One day he got into an argument with a lion. The next day was the first day of September. Why?

How do you make the number one disappear?

I can be as thin as a picture frame but my insides have many things you can see. What am I?

What is unusual about the following words: revive, banana, grammar, voodoo, assess, potato, dresser, uneven?

Why do birds fly south in the Fall?

What do polar bears eat for lunch?

Johnny‘s mother had three children. The first child was named April. The second child was named May. What was the third child‘s name?

Two planes take off at the same exact moment. They are flying across the Atlantic. One leaves New York and is flying to Paris at 500 miles per hour. The other leaves Paris and is flying to New York at only 450 miles per hour. Which one will be closer to Paris when they meet?

What is the richest kind of air?