The Awesomest Riddle in the World (Okay, Maybe Not)

I have a riddle. Would you like to hear it? Probably not, but I'll write it anyway. This riddle has multiple questions and you have to answer each one correctly before going onto the next. I've written the answers a little ways below.  Don't cheat!

Question One: An airplane is flying in the sky. Inside it are 100 bricks. 1 falls out. How many are left?

Question Two: What are the three steps to getting a zebra into the fridge?

Question Three: What are the four steps to getting an elephant into the fridge?

Question Four: There is a party and all the animals are invited. All come except one. Which one is it?

Question Five: An old woman is trying to cross a wide but shallow river. The only problem is that the river is infested with extremely hungry crocodiles. There are no trees around or anything to build a bridge with. How can the old lady get across?

Question Six: The old lady manages to cross the river but when she gets to the other side she dies anyway. Why?
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Answers:
Question One: One
Question Two: 1. Open the door. 2. Put the zebra in. 3. Close the door.
Question Three: 1. Open the door. 2. Take the zebra out. 3. Put the elephant in. 4. Close the door.
Question Four: The elephant. It's still stuck in the fridge.
Question Five: The crocodiles aren't there. They're all at the party.
Question Six: The brick that fell out of the airplane landed on her head.