Daniel Dennett, one of tne of the world's leading philosophers, comes to the Intelligence Squared stage to share with aspiring thinkers his personal trove of mind-stretching thought experiments.

Nate Silver is the 35-year-old data engineer and forecaster with superstar status. Barack Obama has called him “my rock, my foundation”, and Bryan Appleyard in the Sunday Times described him as “our age’s Brunel”. Hear him discuss the science and art of prediciton with the FT's Tim Harford.

Mired in allegations of sexual abuse, corruption in the Vatican, and the first papal resignation in six centuries, the Catholic Church is in crisis. No amount of confession can save it. It's beyond redemption. Or is it? Join us for our latest Versus debate.

Following the death of Baroness Thatcher, we are revisiting our sell-out 2004 debate: ‘Maggie Thatcher Saved Britain’. The evening saw Charles Moore, Lord Bell and Sir John Nott contend with Sir Peregrine Worsthorne, Billy Bragg, and Diane Abbott over the merits and shortcomings of the Iron Lady.

Is Vladimir Putin a villain? He may not be much to your taste, but many Russians will tell you that life has improved immeasurably under him, and not just on the economic front. He’s restored Russia’s self-worth and refused to be pushed about by the West. Isn’t he the very type of strong leader Russia needs?

Is porn the great liberator of the libido or a blight on human intimacy? Come and hear a pornographic film-maker, a renowned addiction therapist and other experts set out the arguments at the Royal Institution on April 23rd.

We should have heeded Marx. As the economic crisis deepens and the gap between rich and poor widens, it’s Marx’s view of the system which paints the true picture. That’s the new view on the economic street. So should we resuscitate Marx or leave the old devil to rot in his Highgate grave?

History has not looked kindly on Neville Chamberlain. The very word “appeasement” is now synonymous with his policy of making concessions to Hitler, and the standard view is that he was weak and naive. But is it fair? Leading historians will be battling over his reputation. Come and give your own verdict.