Psychonauts GA

This is a gonna be a tough one. :)

1. What do you put over your head when it's raining? (use the first letter, lowercase)
2. What body part is the femur and fibula located in? (use the first letter, lowercase)
3. What is the opposite of "yes"? (use the first letter, uppercase)
4. What living thing has three hearts, nine brains, and blue blood? (use the first letter, lowercase)
5. What number was the previous question?

Good luck to all!

Edit: Trying to help some of you. Once you get the five characters from above, add them to the end of this URL: https://www.steamgifts.com/giveaway/ and make sure to add a trailing slash (/) after the five characters.