0 votes 0 votes Hi guys , I got Google's invitation for foo-bar challenge. I think i can go for one or two level but not further with current level of practice. So without requesting for the problem , does anyone know how long I can keep it logged in ? HeadShot asked May 30, 2019 HeadShot 243 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.