# Math Videos

## The Blind Man’s Keys

In this video we will discuss a mathematical problem currently being researched by Spiked Math and others!

## Using Your Hands to Count to 60

Most people can only use their hands to count to 10, but this video will teach you how to become 6 times better than them!

## Paradox Tuesday – Paradox of the Heap

If you remove a grain of sand from a heap, is it still a heap?

## True or False #5 – Fun Math Edition

Put your thinking hats on, because this time we have enough math to go around. Can you get a perfect score?

## Paradox Tuesday – Theseus’ Paradox

Do you want to know what Theseus’s ship and the band Sugarbabes have in common? Watch the video!

## The Wason Selection Task – Four Card Problem Interactive Video

You are shown a set of four cards. Each card has a number on one side, and a color on the other side. We would like to test the truth of the following statement. If a card shows an even number on one face, then its opposite face is blue.

## Paradox Tuesday – Tennis Ball Paradox

Are you up for a real challenge? Find the flaw in this argument and let us know in the comments!