This year's deadline is 30th June 21, the questions are:
Q1. How would the education sector change if governments were no longer involved?
Q2. There is considerable excess demand for undergraduate places at Oxford. The admissions process rations supply by favouring cleverer students at the expense of others. Is this fair? Does it exacerbate inequality? What is the University’s optimal response to this scarcity?
Q3. Should we abolish the minimum wage?
More details here