7-Day Brain Teaser Streak
Solve one riddle, logic puzzle or brain teaser every day for a week. Check in after each one.
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Games · Facts & stats · iChallenge network
Daily facts and stats about games, puzzles and challenges, plus real challenges to put them to work.
How many cards are in a standard deck, not counting jokers?
A standard deck has 52 cards: four suits of 13 cards each.

One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Solve one riddle, logic puzzle or brain teaser every day for a week. Check in after each one.
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Arrange the numbers 1 to 9 in a 3×3 grid so every row, column and diagonal adds to 15, and post a photo link.
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Choose one small positive habit and mark it on a paper tracker every day for 30 days. Check in daily.
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Teach a friend or family member a classic card, board or paper game and share a short write-up of how it went.
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Live counts from ChallengeGuide.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Fund a prize on ChallengeGuide.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
Play today's quiz round, post your score, and start a streak.
XP, levels, streaks and badges. Save your progress with an email and it follows you to every arena on the iChallenge network.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.