I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?

Answer: Sand.

More Tricky Riddles with answers

More Tricky Riddles

I can be long, or I can be short. I can be grown, and I can be bought. I can be painted, or left bare. I can be round, or square. What am I?
I can be short and sometimes hot. When displayed, I rarely impress. What am I?
I can come in a can, I can come as a punch, I can come as a win, You can eat me for lunch. What am I?
I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole. What am I?
I come in a cone but I am not food; I will be skewed if you screw with my hue; I come by the millions but you can probably only name a few. What am I?
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty. What am I?
I have a little house in which I live all alone. It has no doors or windows, and if I want to go out I must break through the wall. What am I?
I have legs but walk not, a strong back but work not. Two good arms but reach not. A seat but sit and tarry not.
I have many feathers to help me fly. I have a body and head, but I'm not alive. It is your strength which determines how far I go. You can hold me in your hand, but I'm never thrown. What am I?
I have three USA coins. They are not a quarter, dime or penny and they add up to 60 cents. What are the coins?
I have two coins, one is marked George I and one is marked George IV. One is genuine but one is a forgery. Which is the forgery?
I know a word of letters three. Add two, and fewer there will be! What Word Am I?