How many piano tuners are there in the entire world?
Or how about?:
You are shrunk to the height of a nickel and your mass is proportionally reduced so as to maintain your original density. You are then thrown into an empty glass blender. The blades will start moving in 60 seconds. What do you do?
Here are many more, via Craig Newmark. I gave a talk at Google on Friday (soon coming on YouTube), and yes they really do have toy stations and Lego blocks for everyone. They also have the tastiest workplace cafeteria I’ve sampled. Everyone is smart and beautiful, and I didn’t want to leave.