Answer:
I make everyone blind. You can't see me but I will always come back for you. What am I?
If you have me you want to share me. If you share me you don't have me. What am I?
When the clock has no angle, I will own yesterday, tomorrow and tonight. What am I?
I dig out tiny caves and store gold and silver in them. I also build bridges of silver and make crowns of gold. Sooner or later everybody needs my help yet many people are afraid to let me help them.
What is the difference between a poorly dressed man on a bike, and a well-dressed man on a unicycle?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.