Answer:
When is 1500 plus 20 and 1600 minus 40 the same thing?
What is full of holes but still holds water?
The lunch destination of choice for teenagers and hospital employees.
What is taken before you can get it?
A seasonal fashion statement named for the weather it's worn in.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.