Logic Riddles

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

Question: What goes next: 4,7,93,12,9,8,?

Question: I can fly like a bird not in the sky which can always swim and always dry. I say goodbye at night and morning hi I'm part of you what am I? I follow and lead as you pass. Dress yourself in black my darkness lasts. I flee the light but without the sun. Your view of me would be gone.

Question: What begins and has no end, and ends all things that begin?

Question: Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?