You enter into another room, as expected, the door seals behind you. You assume that you answered the last question correctly, but you are not sure. This could be a trap.
The second puzzle. Two robot holograms appear. Robot 01 and Robot 02. A disembodied voice says that they may both be truth tellers, or both liars, or one truth teller and one liar.
Robot 01 says “Robot 02 is a liar”, Robot 02 says “Neither of us are liars”