Daily Brain Teaser: Kaysersberg

In a small village, there are 100 married couples living. Everyone in the village lives by the following two rules: If...

Daily Brain Teaser: A Lady and a Cowboy

A lady and a cowboy lie next to a bullet, a dime, and a hook. As a result, someone is delighted...

Daily Brain Teaser: Keep it

A man shot two arrows at its center and missed both times, but using a sword swung once at its center...

Daily Brain Teaser: Frozen Lake

You wake up on a frozen lake in an isolated region. The frozen surface is frictionless and no grip of any...

Daily Brain Teaser: Detective

Slylock Fox and Max Mouse needed the rope on the ground to escape, but none of the onlookers could throw it...

A new high-resolution, 3D map of the whole mouse brain

After three years of intensive data-gathering and careful drawing, the mapmakers’ work was complete. The complex terrain they charted, with all...

Daily Brain Teaser: Daily Routine

This morning I woke up at 9 o’clock. My first job was to drink a glass of water and brush my...

Daily Brain Teaser: Sloth Climbing

A slippery sloth climbs six feet up a utility pole during the day, then slides back down five feet during the...

Daily Brain Teaser: Finders, Keepers

If you are to keep it, you must first give it to me. What is it?          ...

Daily Brain Teaser: Small Village

In a small village, there are 100 married couples living. Everyone in the village lives by the following two rules: If...