I know this is stupid question but I play for fun to bait my friends running into servers.

Question: Can agenda be rezzed in remote server (showing the card) but you're not scoring it?

No.

To give a little more explanation:

An Agenda has no rez cost (this is not the same as a rez cost of zero), rules state it must be placed into play unrezzed. Ergo, Agendas cannot be rezzed.

There's always Celebrity Gift.