On the East Road just out of Hobbiton (past the woodsman who
trades his dagger for pipeweed), on the ledge above the stumps
that summon the elves is a house. Enter it and walk up to the
bookcase. Press Action and a gold coin will appear. Leave the
house and re-enter. Another gold coin will be there. Repeat this
to get as many coins as needed.
To pass the 21st hall in Moria, go to the center of the room and
push or pull the four blocks of stone with hands on top of the
tiles that you can step on. Once you put all four on, you will
pass that part of Moria.
When you fight the Ring Wraith on the Balrog, there is a tower
with steps that you can walk up. If you stay up there, the Balrog
cannot hurt you, except when it takes flight.