Answer:
Things here are usually tagged with red stickers.
I build up castles. I tear down mountains. I make some men blind, but I help others to see. What am I?
What word has kst in the middle, in the beginning, and at the end?
I have a lot to say but can't be heard because I can't speak one single word. What am I?
I am full of holes but still hold water. What am I?
Why was the cook arrested?