Answer:
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
What is full of holes but still holds water
A home of wood in a wooded place, but built not by hand. High above the earthen ground, it holds its pale blue gems. What is it?
What has a bell but isn't a church. Is full of air but is not a balloon?
What can be underwater, under fire, on fire and taking water all at the same time?
A cowboy rode into Friday. He stayed in town for three days and rode back on friday. How is that possible?