- David Goldstein
- @golddave
- A Whole Lot of Nothing
Tweet #588744347677495296
A Math Problem From Singapore Goes Viral: When Is Cheryl’s Birthday? golddave.com/KeF8U9 (via @nytimes) Me: Can you figure it out?
A Math Problem From Singapore Goes Viral: When Is Cheryl’s Birthday? golddave.com/KeF8U9 (via @nytimes) Me: Can you figure it out?