Best riddles for teens

What is something you will never see again?

Today is Admin's birthday. His five close friends Nell, Edna, Harish, Hsirah and Ellen surprised him with party. What is special with this list of these five names?

What can you swallow than can also swallow you?

How many sides does a circle have?

What can you hold in your left hand, but not in your right hand?

What kind of room has no doors or windows?

Tom was a clerk at a butcher shop. His height is six feet and three inches. He wear shoes sized number 12. What does he weigh?

What did the boy squirrel say to the girl squirrel on Valentine's Day?

What bird can lift the most?

A woman with no driver license goes the wrong way on a one-way street and turns left at a corner with a no left turn sign. A policeman sees her but does nothing... Why?