New difficult general knowledge tests, aimed at challenge-seeking quiz enthusiasts, appear twice a week on the 15min portal – on Mondays and Fridays or Saturdays.
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A new general knowledge test appears on the portal every weekday morning. These tests check knowledge in various fields: history, geography, culture, pop culture, current affairs, music, etc.
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On Monday and Thursday evenings on the portal – a new “Neurobics” test. On other weekday evenings, as well as on weekends and mornings, thematic knowledge check tests or games are published on the portal.
All 15min tests – 15min tests page.
More difficult tests:
Difficult general knowledge test (2026 05 22)
Difficult general knowledge test (2026 05 15)
Difficult general knowledge test (2026 05 08)
Difficult general knowledge test (2026 05 01)
Difficult general knowledge test (2026 04 24)
Difficult general knowledge test (2026 04 17)
Difficult general knowledge test (2026 04 10)
Difficult general knowledge test (2026 04 03)
Difficult general knowledge test (2026 03 27)
Difficult general knowledge test (2026 03 20)
Difficult general knowledge test (2026 03 13)
Difficult general knowledge test (2026 03 06)
Difficult general knowledge test (2026 02 27)
Difficult general knowledge test (2026 02 20)
Difficult general knowledge test (2026 02 13)
Difficult general knowledge test (2026 02 07)
Difficult general knowledge test (2026 01 30)
Difficult general knowledge test (2026 01 23)
Difficult general knowledge test (2026 01 16)
Difficult general knowledge test (2026 01 09)
Difficult general knowledge test (2026 01 02)
