Hello Yusuke! At first glance means the first time you considered something.. it could also mean first sight of a thing or person. At the face of it is used when you are describing how a situation seems on the surface. Example of sentences that explains these terms: "At first glance I knew she was the criminal". "At the face of it, it all seemed well" . I hope this helps😊

Hello Yusuke! Yes, they have the same meaning wherein both are about something which seems to be at first notice. However, it isn't so upon further investigation/reflection.