Answer:
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
It can pierce the best armor and make swords crumble with a rub, yet for all its power It can't harm a wooden club.
I weaken all men for hours each day. I show you strange visions while you are away. I take you by night, by day take you back. None suffer to have me, but do from my lack.
What goes up when the rain comes down?
I have a face, yet no senses. But I don't really care, because time is of the essence.
People take me on walks and I run and have fun. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?