Number of questions Difficulty Time for solution Group   EASYMIX 01 20 easy unlimited 1   INTERMAT 1 20   MEDIUMIX 01 20 medium unlimited 3   MEDIUMIX 02 20 medium unlimited 3   MEDIUMIX 03 20 medium unlimited 3   UNIMIX 01 20 the highest unlimited 6   UNIMIX 02 20 the highest unlimited 6   UNIMIX 03 20 the highest unlimited 6   UNIMIX 04 20 the highest unlimited 6 Author and owner: Stanislav Hatala Last update: 29.08.2003 Translation: Katarína Hatalová Graphics: Dana Hatalová   Webmaster: Roman Novota