In the latest edition of our monthly challenge That's Puzzling!, Piya Chattopadhyay competes against one familiar voice and one clever listener in a battle of brain games devised by puzzle master Peter Brown. Playing along this month are CBC News reporter and videojournalist Brett Ruskin in Halifax, and Dundas, Ont. listener Brenda Bjarnason.

Host Piya Chattopadhyay speaks with The Economist's Rob Russo, Le Devoir's Emilie Nicolas and The Hub's Sean Speer about our post-election political reality, science journalist Laura Spinney explains how one ancient dialect inspired scores of languages we speak today, veteran political columnist Andrew Coyne talks about the "crisis" he sees in Canadian democracy, and we play an all-new round of our monthly challenge, That's Puzzling!

Find more at at https://www.cbc.ca/sunday

This Wednesday marks the 50th anniversary of the end of the Vietnam War. The conflict led to more than one million people fleeing the war-torn countries of Vietnam, Cambodia and Laos. Canada accepted approximately 200,000 refugees from the region between 1975 and the 1990s. Canadian author Vinh Nguyen was among them. He speaks with Piya Chattopadhyay about retracing his family’s journey in his memoir The Migrant Rain Falls in Reverse, and how this moment in history resonates with diasporic experiences today.