2**(32 - netmask) - 2 = number of nodes available
The netmask is in CIDR (Common Internet Domain Routing) notation, without the slash.
One of the nodes would be needed for a router or else you can't communicate with other networks.
Well first of all who is your favorite celebrity?
Then find some research and look up interesting facts you did not know about.
23 bits would leave room for 512 node numbers.
They allow users to store files.
They allow users to share files.
They help users organize assignments.
They allow users to clip information from web pages.
Straw man
eg. "Senator Jones says that we should not fund the attack submarine program. I disagree entirely. I can't understand why he wants to leave us defenseless like that."
Ad hominem
eg. “How can you argue your case for vegetarianism when you are enjoying your steak?”
Over simplication
eg. President Bush wants our country to trade with Fidel Castro's Communist Cuba. I say there should be a trade embargo against Cuba. The issue in our election is Cuban trade, and if you are against it, then you should vote for me for president.
Bandwagon
eg. Everyone is selfish; everyone is doing what he believes will make himself happier. The recognition of that can take most of the sting out of accusations that you're being "selfish." Why should you feel guilty for seeking your own happiness when that's what everyone else is doing, too?
Black or white
eg. Well, it's time for a decision. Will you contribute $20 to our environmental fund, or are you on the side of environmental destruction?