Previous year problems (English version)

2015: Astronomy, Biology, History, Linguistics, Literature, Math, Math games, Physics, Chemistry

2014: Astronomy | Biology | History | Linguistics | Literature | Math | Math games | Physics | Chemistry

2013: Astronomy | Biology | History | Linguistics | Literature | Math | Math games | Physics | Chemistry

2012: Astronomy | Biology | History | Linguistics | Literature | Math | Math games | Physics | Chemistry

2011: Astronomy | Biology | History | Linguistics | Literature | Math | Math games | Physics | Chemistry