It’s hard to give up. Remove part of it and you still have a bit. Remove another part, but bit is still there. Remove another and it remains. What is it?
There is a brick of gold and a brick of iron in a boat (both 10 inch blocks), if they are both dropped into the water which will make the water level higher?
A plane with 168 passengers crashes on the border of 3 neighboring countries, country A,B and C. Half of them passed away. Half of them got burried in country A, the other half in Country B. Where did the other 84 people get burried?
It can split granite, yet a child can break it up easily.
You can’t breathe it, yet your lungs wouldn’t work without it.
It exists pretty much everywhere, yet people die for lack of it.
While in the water, the anchor takes up a certain volume, regardless of weight.
Once the anchor is brought into the boat, the boat will settle, displacing the amount of water equivalent to the weight of the anchor. Whereas the density of the anchor is greater than water, this displacement will be greater than that of the anchor itself.
However- would it actually be noticeable? Or, measurable? I would say probably not.