Brain training: 7 Puzzles To Challenge Your Mind!

MindYourDecisions May 18, 2025
Video Thumbnail
MindYourDecisions Logo

MindYourDecisions

@mindyourdecisions

About

Hey this is Presh Talwalkar. I studied Mathematics and Economics at Stanford and post interesting topics suggested by you and viewers around the world. Members get early access to videos YouTube members https://www.youtube.com/channel/UCHnj59g7jezwTy5GeL8EA_g/join Patreon members https://www.patreon.com/mindyourdecisions Every "coffee" helps me make more videos! https://ko-fi.com/mindyourdecisions https://www.paypal.com/donate/?hosted_button_id=REZRY3QRQPYQA 2017 Shorty Awards Nominee in STEM (Science, Technology, Engineering, and Math) Press http://mindyourdecisions.com/blog/press My Books on Amazon https://www.amazon.com/Presh-Talwalkar/e/B008DKL6VG/ Send me your suggestions: click on "for business inquiries" to see my email address. *I am not accepting sponsorships/partnerships at this time, but I am happy to discuss great opportunities. For links in my video descriptions: as an Amazon Associate I earn from qualifying purchases. This has no effect on the price for you.

Video Description

If it takes 7 seconds for 7 ticks, how many seconds will 10 ticks take? The answer is not 10. How many of these puzzles can you solve? Skills tested: outside the box thinking, creativity, logic, pattern recognition, Harvard entrance exam style question, interview question, mathematics, puzzle solving, problem solving, genius test 0:00 crazy 8s 1:17 gold split 5:41 circle e's 7:05 boys and girls 9:43 100 cat 10:41 clock ticks 14:01 lion interview 0:00 puzzle 1 https://www.popsugar.com/tech/how-many-8s-photo-45240276 https://timesofindia.indiatimes.com/life-style/health-fitness/de-stress/optical-illusion-how-many-8s-can-you-spot-in-this-image/articleshow/100931818.cms 1:17 puzzle 2 https://www.enjoymathematics.com/blog/gold-for-7-days-of-work 5:41 puzzle 3 adapted from https://www.reddit.com/r/puzzles/comments/18vgolf/the_vicious_circle/ 7:05 puzzle 4 https://testbook.com/question-answer/a-family-has-several-children-each-boy-in-this-fa--5fbf80bbfc893b72de95f225 https://www.wyzant.com/resources/answers/439319/a_family_has_several_children_each_boy_in_the_family_has_many_sisters_as_brothers_and_each_girl_has_twice_as_many_brothers_as_sisters_how_many_brothers_and_sist https://aspirestudy.in/notifications/previous_year_papers/nimcet_2016.php 9:43 puzzle 5 https://www.youtube.com/watch?app=desktop&v=QSr4MuPx_2E 10:41 puzzle 6 https://prepyourmathblog.wordpress.com/2016/08/05/some-of-the-puzzles-from-shakuntala-devi-books/ https://en.wikipedia.org/wiki/Shakuntala_Devi 14:01 puzzle 7 adapted from https://www.efinancialcareers.com/news/the-unusual-riddle-goldman-sachs-might-ask-you-in-a-quant-job-interview Get early access to videos by supporting the channel https://www.youtube.com/channel/UCHnj59g7jezwTy5GeL8EA_g/join Patreon https://www.patreon.com/mindyourdecisions Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas! If you purchase through these links, I may be compensated for purchases made on Amazon. As an Amazon Associate I earn from qualifying purchases. This does not affect the price you pay. Book ratings are from January 2025. My Books (worldwide links) https://mindyourdecisions.com/blog/my-books/#worldwide My Books (US links) Mind Your Decisions: Five Book Compilation https://amzn.to/2pbJ4wR A collection of 5 books: "The Joy of Game Theory" rated 4.2/5 stars on 564 reviews http://amzn.to/1uQvA20 "The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" rated 4.2/5 stars on 55 reviews http://amzn.to/1o3FaAg "40 Paradoxes in Logic, Probability, and Game Theory" rated 4.2/5 stars on 81 reviews http://amzn.to/1LOCI4U "The Best Mental Math Tricks" rated 4.3/5 stars on 148 reviews http://amzn.to/18maAdo "Multiply Numbers By Drawing Lines" rated 4.5/5 stars on 57 reviews http://amzn.to/XRm7M4 Mind Your Puzzles: Collection Of Volumes 1 To 3 https://amzn.to/2mMdrJr A collection of 3 books: "Math Puzzles Volume 1" rated 4.4/5 stars on 138 reviews http://amzn.to/1GhUUSH "Math Puzzles Volume 2" rated 4.2/5 stars on 45 reviews http://amzn.to/1NKbyCs "Math Puzzles Volume 3" rated 4.3/5 stars on 38 reviews http://amzn.to/1NKbGlp 2017 Shorty Awards Nominee. Mind Your Decisions was nominated in the STEM category (Science, Technology, Engineering, and Math) along with eventual winner Bill Nye; finalists Adam Savage, Dr. Sandra Lee, Simone Giertz, Tim Peake, Unbox Therapy; and other nominees Elon Musk, Gizmoslip, Hope Jahren, Life Noggin, and Nerdwriter. My Blog https://mindyourdecisions.com/blog/ Twitter https://twitter.com/preshtalwalkar Instagram https://www.instagram.com/preshtalwalkar/ Merch https://teespring.com/stores/mind-your-decisions Patreon https://www.patreon.com/mindyourdecisions Press https://mindyourdecisions.com/blog/press

Boost Your Brain Power Today!

AI-recommended products based on this video

Loading...
Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

(3)
$16.99
$5.99 delivery Dec 19 - 29
400+ bought in past month
Loading...
Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

(3)
$16.99
$5.99 delivery Dec 19 - 29
400+ bought in past month
Loading...
Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

(3)
$16.99
$5.99 delivery Dec 19 - 29
400+ bought in past month
Loading...
Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

(3)
$16.99
$5.99 delivery Dec 19 - 29
400+ bought in past month
Loading...
Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

Large Labyrinth 3D Puzzles Maze Cube with Rolling Ball, Challenging Brain Teaser Puzzles for Adults & Kids, High-Difficulty Cube Logic Game for Spatial Awareness Focus Training Stress Relief (Blue)

(3)
$16.99
$5.99 delivery Dec 19 - 29
400+ bought in past month
Loading...
Easter Gifts For Kids: Easter I Spy Search & Find for Kids Ages 3-7: Cute Spring Puzzles, Hidden Objects and Brain Games – Screen-Free Fun, Easter Basket Stuffers and Family Activities

Easter Gifts For Kids: Easter I Spy Search & Find for Kids Ages 3-7: Cute Spring Puzzles, Hidden Objects and Brain Games – Screen-Free Fun, Easter Basket Stuffers and Family Activities

(1)
$10.21
FREE delivery Tue, Apr 7 on your first order