You've been transported to a distant planet where turtles rule the land. They're not just any turtles, mind you. These are the most intelligent, most stylish, and most likely to give you a hard time solving their riddles turtles in the galaxy.
Why did the Martian turtle cross the road? To get to the other side... of the atmosphere!
What's the air-speed limit on Mars? The speed of sound... or at least, the speed of a turtle on a skateboard!
If I had a million Martian dollars and I gave you a dollar, how many dollars would I have left?