Short Riddles and Answers

Question: What does this code mean?: YY U R YY U B I C U R YY 4 ME

Question: What can you see from space that you can't see from Earth?

Question: I am the thing that is used to make your weight. What am i?

Question: what does not move outside (the surface)but moves inside ?

Question: what is a bud inside the house and flower outside the house