Logic Riddles

Question: You have a cube made of 10 x 10 x 10 smaller cubes, for a total of 1000 smaller cubes. If you take off 1 layer of cubes, how many remain?

Question: A semi truck is driving down the highway but the driver isn't paying attention. He goes under an overpass that is too short for his truck by only inches and gets stuck. He thinks it's going to be a very costly mistake but one of his friends happens to pass by and explains to him how he can get out in the matter of minutes without any help.

What does he suggest?

Question: There was three elephants who were about to leave the home. They only had one umbrella. They all try to fit under that on umbrella. When the elephants reach their destination, none of them are the slight least wet. How could this be possible?

Question: You are in a car with some helium balloons and hit the gas. While you accelerate, which way does the balloon move?

Question: I am first in earth A second in heaven I appear twice in a week But you can only see me once in a year You can also see me in the middle of the sea What am I?