There's a new Guinness World Record holder for how fast someone can do math. Aaryan Shukla -- who has been dubbed "the human calculator" can solve complex problems in his head in seconds. KUOW is ...

Maggi Ajjayya, Kottur’s “Computer Man,” amazes social media with lightning-fast mental math. Despite only studying till 8th grade and surviving by begging, his calculation tricks have gone viral.

OK, Ari, what is 567 times 123? And you have exactly three seconds to answer, so you better move fast. SHAPIRO: You can't be serious right now, Juana. SUMMERS: (Laughter). SHAPIRO: There's no way ...