The rules

• Questions come one at a time, easiest first.
• Pick one of four answers. Your choice locks in straight away.
• You'll see whether it was right, plus a one-line fact.
• No going back and no second guesses.
• Finish all five to see your score, your time and your streak.

Scores and streaks

Finishing today's quiz keeps your streak alive whatever you score. Quizzes from the archive add to your totals but never move the daily streak. Your results stay in this browser — nothing to sign up for.