how can i make a countdown script?

that will countdown and then replace everyone back into a lobby?

also if any scripter would be kind enough to friend me s i have lots of scripting questions.

for the countdown i use for loop

for i = 60, 0 - 1 do print(i) wait(1) end

that will make a countdown 60 to 0

and for the player tp to lobby im not sure how to make a player tp.

and ill friend you my name is space1188

for i=1,60 do
print(i)
wait(1)
end

local players = game.Players:GetChildren()
for i=1,#players do
players[i]:LoadCharacter()
end