Cedric has 144 fluid ounces of punch to fill pink containers. how many pink containers can he fill with punch?

depends how much will fit into a pink container.

Once you have determined that, divide 144 by that number.

I guess that would depend on the size of the pink containers ...

If each pink container holds one pint, then since
1 pt = 8 fl oz,
he can fill 144/8 = 18 "pink" containers.