I just recently learned scripting. This is the code I made:

myTable = {game.Workspace.fifteen.one, game.Workspace.fifteen.two, game.Workspace.fifteen.three, game.Workspace.fifteen.four, game.Workspace.fifteen.five, game.Workspace.fifteen.six, game.Workspace.fifteen.seven, game.Workspace.fifteen.eight, game.Workspace.fifteen.nine, game.Workspace.fifteen.ten, game.Workspace.fifteen.eleven, game.Workspace.fifteen.twelve, game.Workspace.fifteen.thirteen, game.Workspace.fifteen.fourteen, game.Workspace.fifteen.fifteen}
noTable = {"one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen"}

while true do
	Collide = math.random(1, #myTable)
	Collide1 = myTable[Collide]
	Collide1.CanCollide = false
	wait(5)
	if myTable.CanCollide == false then
		myTable.Transparency = 0.5
			wait(3)
		myTable.CanCollide = true
	end
end

There are 15 parts that I've grouped that's called 'fifteen'. I want the parts to randomly be non-collidable while being semi transparent. I have a bit of an inkling on where it is wrong. But don't know for the life of me how to fix it.

My current knowledge of scripting is very basic, only having finished peaspod's beginner tutorial and two episodes of his advanced tutorial.