Answer:
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?
What kind of dog keeps the best time?
I have a foot but no leg. What am I?
I am a ship that can be made to ride the greatest waves. I am not built by objects, but built by minds. What am I?
In my life I must bare, my bloodline I must share. What am I?
A cowboy rode into Friday. He stayed in town for three days and rode back on friday. How is that possible?