Can I do a group reservation for 20?

I think you can. They have a private room that can be used or the can move tables together. I have seen some large groups here.

Yeah

Yes

I think so... They have a back room... But i don't know how many it seats

Yes you can. They have a room that can seat 30, I think, maybe more

Not sure that they could do a set up that large

You can make a reservation of that size but the restaurant isn't huge so you all might not sit at the same table.