Eight of us go fourth, not back, to protect our king from an attack. What are we?

Can you Find and name the hidden bird in the picture below ?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

If you say my name, I will no longer exist. What am I?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?