Good Riddles

Question: What is bright and sunny?

Question: I can pogo on the moon, but not Mars. I can pogo on this table, but not on a stick. What can assure us to be able to pogo on objects at all times?

Question: What is green and has wheels?

Question: It is able, but not capable.
It can stop, but not go.
It is dead, but not yet perished.
It's a ghost, but not paranormal.

Is it high, or is it low?

Question: It flies, it walks, it runs on land, It takes, it gives, but without hands, It carries and delights, Falls and frights. Normally a creature of white it is. What is it?