Answer:
It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter.
There is a puzzle which can be asked all day with a different correct answer each time. What is the puzzle?
You can read it both ways, I wearΝΎ One way it's a number, reversed a snare.
A tree with 5 branches, no leaves and no fruits
Two horses, swiftest traveling, harnessed in a pair, and grazing ever in places. Distant from them.
If lightning strikes an orchestra who is the one most likely to get hit?