Can I run it?

I was wondering whether my PC can run a good Lilypad server, I will be having 3/7 servers up @ 1 time, my upload speed is 12.18 Mbits/sec ,, download speed is 30.98 Mbits/sec & My ram in Megabytes is 16384 (16 gigs)

Upload speed is 1.5225MB/s, download is 3.8725MB/s
I wouldn't say you can run a server with exceptional performance, however you should be able to run a fairly basic server. If you plan on having 3 servers up then depending on how much RAM they'll be using you may want to leave your computer whilst they're up. I'd highly suggest investing in a VPS or dedicated server to host the servers.

LilyPad is a very light weight software, yes you could run it on your PC with some other servers(depending on the size of them), though it would not be the ideal setup.

EDIT:
Damn @charries96 ! Posted a few seconds before. His suggestion's would be the best though, you should look into buying a VPS or a dedicated server.

Im planning to have a decent server with about 40 players on it (Not all on 1 server but across the network) http://canihostaminecraftserver.com/ I also did that & it said i cud host 35/40 players

Is that website referring to vanilla or Bukkit? Bukkit (and subsequent Bukkit-mods) require more memory than the standard server package.