The Barrel..

[elion]

you cant see it, you cant touch it, it doesnt weigh anything, but if you put it in a barrel it will make the barrel lighter. what is it?? ^^

[elion]

nope ^^

[elion]

semi-hint: by lighter, i mean weighs less

[Jubba]

a hole

[elion]

yep :cowboy:

[elion]

well.. its really hard to say x.o.. i guess you can see a hole in something, but the hole is kindof nothing, so im confused :hat:

[lostinbeta]

I have to agree with Phil. You can see a hole, if you can see a hole in something, you can see it.

But as Phil said, this is just for fun, so semantics aside, it was a good riddle :P

[Jubba]

A zebra in a blender.

[Jubba]

I know. The riddle is sooo old, i figured it needed a little psychotic 21st century update...