Logic Riddles

Question: The sky is blue, the sea is green. The answer never ends in-between.

Question: Imagine that you're in a dark room where there is nothing except a drinking cup. There is a door out of the room but it is locked with 50 locks on the outside. There are guards pointing guns at the door so if you try to escape you will die. How do you get out of the room?

Question: Farrah left her key under the mat and when she came back she lost it.The painter said he painted the wall ,the security said she didn't know, annd the janitor said he cleaned the floor. Who took the key?

Question: I can be seen and heard miles away, only show my position for a couple of seconds, but if touched it can kill you instantly.

Question: 2 Kingdoms are at war. The 1st kingdom are almost out of soldiers. One soldier managed to get in front of the king of the 2nd kingdom, but he didn't kill him. Why?