New difficult general knowledge tests, aimed at challenge-seeking quiz enthusiasts, appear on the 15min portal twice a week – on Monday and Friday or Saturday.
Read more In the Gulf of Oman, the Iranian military fired “warning missiles” at US destroyers
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.
Read more Russia and Ukraine exchanged prisoners of war: 185 defenders return home
On Monday and Thursday evenings on the portal – a new “Neurobika” test. On other weekday evenings, and on weekends and mornings, thematic knowledge tests or games are published on the portal.
Read more QUIZ. How much do you really know about chicken? Take it and win a grill set!
All15min tests – on the 15min tests subpage.
More difficult tests:
Difficult general knowledge test (2026 05 29)
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)
