Challome
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Daily brain playground

Train your brain.
One challenge at a time.

Quizzes, trivia, riddles and brain games that get harder as you get better. Fresh questions every run, real scores and a daily streak to keep you coming back.

Play today's challenge Browse 18 topics
  • Free to play
  • No sign-up needed
  • 713+ questions
Level 1
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Today's challenge ~3 min
geography

World Rivers & Continental Divides

Chart the mighty waterways and continental divides that shaped human civilization.

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My progress

Your brain stats

Everything below is calculated from the challenges you actually finish.

Level 1

Curious Sprout

0 XP

Finish your first challenge to start earning XP.

Challenges played
0
Accuracy
–
Total points
0
Current streak
0 days
Best streak
0 days
Perfect runs
0

Topic mastery

    Play a few challenges and your strongest topics show up here.

    Recent runs

      No runs yet. Your last 8 results appear here.

      Habit path

      1. Day 1Sprout
      2. Day 3Spark
      3. Day 7Rhythm
      4. Day 14Habit
      5. Day 30Master

      Badges

      First StepsFinish your first challenge.Locked
      Flawless MindScore 100% on any challenge.Locked
      On FireAnswer 5 questions in a row correctly.Locked
      UnstoppableAnswer 10 questions in a row correctly.Locked
      Daily HabitComplete a Daily Challenge.Locked
      3-Day StreakPlay on 3 days in a row.Locked
      Full WeekPlay on 7 days in a row.Locked
      Brain MasterPlay on 30 days in a row.Locked
      Topic ExplorerPlay challenges in 4 different topics.Locked
      All-RounderPlay challenges in 10 different topics.Locked
      Quiz ChampionComplete 10 runs of any challenge.Locked
      Speed ThinkerFinish a 10-question run in under 60 seconds with 80%+ accuracy.Locked
      Fifty CorrectAnswer 50 questions correctly in total.Locked
      PerfectionistGet 5 perfect scores.Locked
      Brain AthleteReach player level 5.Locked
      Start here

      Featured challenges

      36 challenges, each with a deep question bank. Every run is different.

      Explore

      Browse by topic

      Pick from 18 topics, from world geography to gaming lore.

      2 challenges
      Quizzes

      Comprehensive knowledge tests designed to challenge how much you really know.

      2 challenges
      Trivia

      Fascinating, fast-paced trivia questions that will surprise and enlighten you.

      2 challenges
      Puzzles

      Ingenious lateral thinking and deduction challenges to bend your mind.

      2 challenges
      Riddles

      Clever wordplay, deceptive metaphors, and classic brain teasers.

      2 challenges
      Brain Games

      High-speed cognitive workouts targeting memory, focus, and mental agility.

      2 challenges
      Geography

      Explore world capitals, mountain ranges, rivers, and global landmarks.

      2 challenges
      Guess the Country

      Deduce the mystery country using geographical clues and landmark hints.

      2 challenges
      Guess the Flag

      Vexillology challenges testing your recognition of national flags.

      2 challenges
      Memory Test

      Evaluate and boost your short-term working memory capacity.

      2 challenges
      Logic Puzzles

      Deductive reasoning, syllogisms, and numerical sequence logic.

      2 challenges
      Would You Rather

      Playful dilemmas and thought experiments with no right answers.

      2 challenges
      Science

      Physics, chemistry, biology, astronomy, and earth sciences.

      2 challenges
      History

      Ancient empires, pivotal battles, revolutions, and world leaders.

      2 challenges
      Technology

      Computers, artificial intelligence, internet history, and gadgets.

      2 challenges
      Animals

      Wildlife wonders, animal behavior, marine life, and zoology.

      2 challenges
      Movies

      Cinema classics, blockbuster cinema, directors, and Oscar trivia.

      2 challenges
      Gaming

      Video game history, classic franchises, consoles, and esports lore.

      2 challenges
      Sports

      World Cup, Olympics, football, basketball, tennis, and athletics.

      How Challome keeps you sharp

      A different quiz every time

      Each challenge draws ten questions at random from a larger bank and shuffles the answers, so replaying never feels like a repeat. Questions you have not seen come first.

      Levels that ramp up

      Runs open with Warm-up questions, move through Challenger and finish with Expert. Harder questions are worth more points, and speed and streaks add bonuses.

      Real, private progress

      Your points, accuracy, streaks and badges come from your actual answers and live in your browser's database. No account needed, nothing sold, nothing shared.

      A habit worth building

      Short sessions, instant feedback and a daily challenge shared by players everywhere make it easy to learn something new every day.

      Frequently asked questions

      Is Challome free?

      Yes. Every quiz, trivia round, riddle and brain game is free to play, with no account required.

      Do the quizzes repeat the same questions?

      No. Each challenge keeps a bank of questions and serves a fresh random set every run, preferring ones you have not seen yet. Answer order is shuffled too.

      How are points and levels calculated?

      Correct answers earn points based on question level (Warm-up, Challenger, Expert), plus a speed bonus and a streak bonus. Points turn into XP that raise your player level. Everything is calculated from your real answers.

      Where is my progress saved?

      On your own device in IndexedDB, a durable browser database. Signing in with Google is optional and only personalises your profile on this device.

      How does the daily streak work?

      Play at least one challenge each calendar day in your local time zone to extend your streak. Skip a day and it starts again.