Live Today's puzzles

Quick brain games, new every day.

Trivia, word puzzles, geography and a mini-golf duel you send with one link. Free, no account — most games take about two minutes.

Play today's Daily 5

New · Family Game Night

Put CogniBump on the TV. Everyone plays on their phone.

A trivia game show for 2–8 players: scan the code, pick a block buddy, race the clock. Finish with Fake Out, where everyone writes a fake answer to fool the room. Or write your own quiz for a birthday or party.

Host a game night Make your own quiz Join with a code

Daily puzzles

New every midnight, and the same for everyone — so you can compare scores.

19 games
Start here ✓ Played

The Daily 5

Five trivia questions on anything, against the clock. Speed and accuracy both count — and tomorrow there's a new five.

5 questions · About 2 min
New✓ Played

Mini Crossword

A quick daily 5×5 crossword. Race the clock and send your time to a friend.

Words · 2 min
New

Daily Duel

Today’s Daily 5, WordRush, Linkup and a 90-second Hive Sprint against a friend.

vs a friend · 9 min
New✓ Played

Codebreaker

Crack the vault’s secret colour code, or duel the computer.

Logic · 4 min
New✓ Played

Daily Sudoku

One board a day for everyone, easy Monday to expert Saturday. Beat your friend’s score.

Numbers · 5–15 min
New✓ Played

Hive

The daily spelling bee: make words from seven letters. Solo, or take turns with a friend.

Words · 5 min
New✓ Played

Block Party

Drag blocks onto the board and clear rows and columns. Same pieces for everyone.

Puzzle · 5 min
New✓ Played

Linkup

Sixteen words, four hidden groups. Find the links before you run out of mistakes.

Words · 4 min
New✓ Played

Sky Stack

Tap to drop sliding blocks and build today’s tower into the sky.

Timing · 2 min
New✓ Played

Daily 2048

Slide and merge to 2048. Same tiles for everyone, so your score really counts.

Numbers · 5 min
New✓ Played

Crowns

One crown in every row, column and color. No two touching.

Logic · 3 min
New✓ Played

Warmer

Guess the secret word. Every guess tells you how close you are in meaning.

Words · 5 min
New✓ Played

Saturday Grid

Name a player for every school-and-NFL square. Rarer picks score better.

College football · 4 min
✓ Played

WordRush

Crack today's five-letter word in six tries.

Word · 3 min
✓ Played

Daily 5: Movies

Quotes, posters, directors and release years.

Trivia · 2 min
✓ Played

Finish the Lyric

Five songs. Can you finish the line?

Music · 2 min
✓ Played

WordRush 6

Six letters, six tries. Harder than it sounds.

Word · 4 min
✓ Played

College Football

Heismans, rivalries, champions and records.

Sports · 2 min
✓ Played

Which Came First?

Two moments in history. Pick the one that happened first.

History · 3 min

Play a friend

Take your turn, send a link, and they play theirs whenever they like. Nothing to install.

18 games
New

Pass the Putt

Mini-golf for two. Play three holes, send the link, then watch both balls race to the cup in the replay.

2 players · About 4 min

How a duel works

  1. Play your round — it's the same puzzle they'll get.
  2. Send the link by text or group chat.
  3. They play blind, then you both see who won.
New

Crossword TagTeam

Solve a mini crossword together: two answers each, then text it back.

2 players · 5 min
New

Daily Duel

Four of today’s puzzles, round by round. Send your results and see who wins.

2 players · 9 min
New

Island Traders

Settle a storybook island, trade and build. First to 10 points wins.

vs 3 computers · 25 min
New

Sea Battle

Hide your fleet, sink theirs. Two phones, or vs the computer.

2 players · 10 min
New

Hive with a friend

A spelling bee for two phones. Three words each, then pass it back.

2 players · 10 min
New

Block Party with a friend

One board for two. Place your three pieces, then pass it back.

2 players · 10 min
New

Minesweeper Duel

Three squares a turn. Whoever hits the mine loses. Or play classic solo.

2 players · 5 min
New

Crowns TagTeam

Solve a crown puzzle together. Two crowns each, then pass it back.

Co-op · 10 min

Faceoff Five

Five quick reflex and memory games. Best total wins.

2 players · 2 min

WordRush Challenge

You pick the secret word. They race the clock.

2 players · 3 min
✓ Played

Words TagTeam

Take turns guessing one word together.

Co-op · 3 min

TagTeam Logic

Sort sixteen tiles into four hidden groups, together.

Co-op · 5 min

TagTeam Agents

Find your seven agents. Whatever you do, avoid the assassin.

Co-op · 5 min

Sudoku TagTeam

Split one sudoku between two players.

Co-op · 8 min

TagTeam Football

College football trivia, taken in turns.

Co-op · 4 min
✓ Played

TagTeam 6

The word relay, with a six-letter word.

Co-op · 4 min

Challenge 6

The same word duel with a six-letter word.

2 players · 4 min

Geography

Flags, maps and capitals — quick enough for a class warmup.

3 games

Guess the Flag

Ten flags, four choices, one ticking clock.

Geography · 3 min
✓ Played

Where in the World?

Spin the globe and drop a pin on five countries.

Geography · 5 min

US Capitals

All fifty states. Name the capital.

Geography · 4 min

Math practice

Fast-fact drills against the clock. Great for kids — and for grown-ups staying sharp.

4 games

Multiplication

Times-table sprints that build real fluency.

Practice · Any age

Division

Quick-fire division facts, one after another.

Practice · Any age

Addition

A warmup for young brains. Race the clock.

Practice · Any age

Subtraction

Who in the house is fastest? Find out.

Practice · Any age

Why people come back.

CogniBump is a small, independent studio in Colorado. Every game is hand-built and every question is hand-written.

1One puzzle for everyoneEveryone in the world gets the same daily puzzle, so a 4 out of 5 in Tokyo means the same as one in Toronto.
2Two minutes, doneShort enough for a coffee break, a class warmup or the dinner table. Come back tomorrow for a new one.
0Accounts. Ever.No signup, no email, no app. Streaks and scores stay in your browser.

Five tips that actually help.

Small habits that consistently move the score, from watching a lot of people play.

  1. Open with vowel-heavy words.

    In WordRush your first guess gathers information. STARE, RAISE or AROSE cover four of the five most common letters in English.

    Try it on WordRush →

  2. Read all four options before you click.

    The Daily 5 timer rewards speed, but a misclick costs more than a slow right answer. A two-second scan avoids the trap option sitting next to the real one.

    Try it on the Daily 5 →

  3. Learn flag families, not flags.

    Nordic flags share a sideways cross; Pan-African flags share red, gold and green; Pan-Arab flags share black, white, red and green. Patterns get you 30+ flags fast.

    Try it on Guess the Flag →

  4. In a relay, pass the easy guesses.

    TagTeam rewards the team. Save your highest-confidence guess so your partner gets the wide-open finish — it feels generous and plays smarter.

    Try it on TagTeam →

  5. Anchor a streak to a habit you already have.

    Streaks die when they're "later." They survive when they're tied to coffee, lunch, the train or bedtime. Pick one anchor and it sticks within two weeks.

    See today's lineup →

Guides for families & classrooms.

How to use CogniBump with kids, friends or students.

For familiesTen-minute routines, pass-the-phone etiquette and kid-friendly picks. Parents & teachersClassroom warmups, privacy notes and sensible pacing. How it worksStreaks, daily resets, and why no account is needed. Help & FAQChallenges, troubleshooting and feature requests.

From the blog: Pick a word mode · 5-minute class warmup · Fair family challenges

Quick answers, no fine print.

More on the help page, or email hello@cognibump.com.

Is CogniBump really free?
Yes — free forever. The site is supported by ads (we use Google AdSense) and there's no premium tier or paywall. Every game on this page is the full game; nothing is held back behind a signup. See the privacy policy for how ads and analytics work.
Do I need to create an account?
No. There is no signup flow on CogniBump. Your scores, streaks and saved games live in your browser's local storage. Clearing your browser data (or playing in a private window) wipes your progress — but it also means we don't keep a profile of you on a server.
How do daily streaks work?
Each daily game tracks how many days in a row you've played. Streaks reset if you skip a day or clear browser data. Because the streak lives in your browser, playing on your phone and your laptop builds two separate streaks. More on how this works.
Is CogniBump safe for kids?
The games are general-audience and never ask for personal information. There are no profiles, no chat and no social features. Ads are served by Google AdSense; if your school or family restricts third-party ads, check your IT policy before projecting the site in class. Our parents & teachers page has more guidance.
How do I challenge a friend?
Open any game in Play a friend — Pass the Putt, WordRush Challenge or a TagTeam game — play your turn, and copy the link from the share button. Your friend opens it in their browser and the game is waiting. No account on either side; nothing to install.
Why is the same puzzle live worldwide?
Because comparing is half the fun. If you played a different puzzle than your sister or your coworker, the score wouldn't mean anything. A shared daily puzzle means you can actually argue about whose answer was smarter.
Can teachers use CogniBump in class?
Yes. The math drills, geography quizzes and Daily 5 work well as five-minute warmups, and there's no student login or roster setup. Project the site or share a URL — that's it. The teacher guide has pacing suggestions and a note on ads.
Who makes CogniBump?
CogniBump is published by TradeHawk HQ LLC, an independent studio based in Colorado, USA. Every game is hand-built and curated — no syndicated question feeds. Spot an error in a question? Email hello@cognibump.com and the person who built the game will read it.