Answer:
I have four legs but no tail. Usually I am heard only at night.
What can you share and still have all for yourself?
Come up and let us go. Go down and here we stay.
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
What is weightless but it needs two person to hold it?
I have two eyes in the front and a lot of eyes on my tail