How many ants in 2000?

Put 10 ants in a row. Now put ten such rows next to each other so that you have a square of ten by ten ants, giving you 100 ants. Now put 20 such squares of ants on top of each other, 20 ants high. This gives you a block of 10X10X20 ants. That would be 2000 ants.

The same would be true of dice, or bricks, or basketballs.