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

What goes through cities and fields, but never moves?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Today is a very icy and cold morning in Newcastle. Mr Shearer, an office bus driver arrived to pick up the employees from the last stop. Shearer suddenly remembers that he needs to pick a newly joined 4miles to the north. Mr Shearer lost his direction compass, a few minutes later Shearer is able to figure that he is moving in the correct direction i.e. north. How did Shearer know that he is moving in the correct direction?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What four weights can be used to balance from 1 to 30 pounds?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

When can we add 2 to 11 and get 1 as the correct answer?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

What is at the end of a rainbow?