Uploaded November 2016 | Updated September 2026, 14 hours ago

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Test your math IQ with this fun question. There are ten green socks and 10 blue socks in a basket. You can not see a thing. How many socks would you need to take out of the basket to ensure you had a least a pair?

My name is Chris and my passion is to teach math. Learning should never be a struggle which is why I make all my videos as simple and fun as possible. I cover all subjects from basic level math through upper level calculus and statistics. I also make brain teaser and Rubik's cube videos for fun.

Check out all of my other brain teasers.

The Easiest brain teaser that will rack your brain
youtube.com/watch?v=nGNuAHnZRXU

Heaven and hell - Brain Teaser
youtube.com/watch?v=YOgKI0HWCnA

Two Burning Ropes - Brain Teaser
youtube.com/watch?v=IyGV5Ry9pQw

Cross the river - Brain Teaser
youtube.com/watch?v=vTWfsUZSCXo

Game show - Brain Teaser
youtube.com/watch?v=ruX49qla1Ig

Don't checkmate - Brain Teaser
youtube.com/watch?v=fuEjP3XfaXA

Counterfeit coins - Brain Teaser
youtube.com/watch?v=d6eF98_4lHU


Channel Page - Youtube.com/MathMeeting
Facebook Page - facebook.com/MathMeeting
Patreon Page - patreon.com/MathMeeting