Best riddles for teens

My antlers tower above my head. Where I live it’s cold all year. I can pull a sled or pack a load. You call me a ?

Dipping, glinting, gliding by, Rainbow-fretted, wrought of breath. I live only while I fly – Earth’s rough kiss my sudden death.

Some months have 30 days, and some months have 31 days. How many have 28?

I dig out tiny caves, and store gold and silver in them. I also build bridges of silver and make crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs my help, yet many people are afraid to let me help them. What am I?

Scientists have proven that cats have more hair on one side than their other side. Some people believe that this is because when cats lay on their side they need insulation from the cold on the floor or ground. Which side of a cat has more hair?

We are a family of 12 members. I am the second. I am also the youngest in our family. Who am I?

What country makes you shiver?

How do you prevent a summer cold?

What emotion is an anagram of a homonym of an antonym of a homonym of an anagram of wolf?

Why are there fences around a graveyard?