Memory Riddles_Inside the computer gaVersión en línea Find the answer to the riddles. por Larraitz Berraondo Alberdi What cat you open but never close? Sometimes it is green or yellow. Sometimes it is red. What is it? You see me during the day but not at night. What am I? You can't see it. You can't touch it. You can't smell it but you can feel it. Which type of dog has no tail? I open your house but I'm not a robber. What am I?