Can you solve the elementary school problem that divided the internet in less than 30 seconds? Test your might in this seemingly easy challenge that many failed.

Abstract: The superiority of magnetic resonance (MR)-only radiotherapy treatment planning (RTP) has been well demonstrated, benefiting from the synthesis of computed tomography (CT) images which ...

Just when you thought Stranger Things couldn't get anymore terrifying, things have taken a real turn for the kids in Hawkins and it's all thanks to the mysterious Mr. Whatsit. But who actually is he?