Answer:
I occur twice in eternity. And I'm always within sight.
What is always on its way but never arrives?
What has keys but no locks, Space but no room, You can enter but you can’t exit.
If you can get this professional's attention you can get where you need to go for a price.
What type of drink is usually added to cereal in the morning?
What is lighter than what it is made of?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?