Good Riddles

 
The unseen (medium)

Question: It makes everyone blind. You can't see it and it will always come back for you.

ready (medium)

By chin

Question: what is ready when you add a letter inside?

(medium)

By chin

Question: Which kind of board can you use to insert letters?

The digger (medium)

By Joot

Question: What is that comes out of a man, has no hand and has no legs but can make a hole on the ground?

Book (medium)

By chin

Question: What kind of book can you use to go internet??