Answer:
You draw a line. Without touching it, how do you make the line longer?
How do you make the number one disappear by adding to it?
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?
What goes up the hill and down the hill, And spite of all, yet stand still?
When is homework not homework?
When someone uses this acronym, you know you've got to pick up the pace