Answer:
I am an odd number. Take away a letter and I become even. What number am I?
I am often sold by children entrepreneurs in summer time
I am drawn by everyone without pen or pencil
What goes up and down, but does not move?
When set loose I fly away. Never so cursed as when I go astray.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?