On the first loop, you’re redefining the table to a value.
local time = 1
local topicsranom = { "tsrar Nine","TWO" }
while wait(time) do
local selected = topicsranom[math.random(1,#topicsranom)]
-- change the variable to something else
game.Lighting.TimeOfDay = 3
wait(time)
game.Lighting.TimeOfDay = 14
local cln = game.Lighting.Newspaper:Clone()
cln.Parent = workspace
cln.SurfaceGui.Attention.Text = selected
end