Answer:
A man goes upstairs to grab his time machine. He walks downstairs then goes back in time 200 years. Why did he go downstairs?
You draw a line. Without touching it, how do you make the line longer?
How do you drop an egg and never break it?
What is the largest $ amount of change you can have in your pocket without having exact change for $1?
How do you discover something that does not exist?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?