In the morning, the nerds learned some basic English phrases and in the afternoon there was a math riddle competition – “There’s a 5L bucket and a 2L bucket, and you need to fill a 4L bucket with only 3L – any more and a bomb will explode – how do you solve the problem?”, and the winning team, five girls – Baro, Aicha, Saran, Salimata and Kadidiatou, won prizes!