add heat and evaporate some or all of the water?
You may add distance. Move the barrel containing the water away from the earth and it will be less affected by earth's gravitational force. So it will weight less despite its unchanged mass.
a beach ball, pushed down enough
how can you add a hole without removing what used to be where the hole is now?! this question is flawed and should be removed immediately as inappropriate! LMAO
an 8 pound hole
You head held under for 10 minutes
I'm comming for you