A Spooky Challenge for Engineers! Dare to face the fright of this month's quiz. Prove your engineering might and scare away the competition.

A cargo ship loaded with iron is floating in a harbor. A crane lifts the iron out of the ship and places it into the water beside it. Does the water level rise, fall, or stay the same?

Labor Day Challenge: Engineer vs. Undergrad! Celebrate the spirit of hard work and prove your engineering superiority. Take the quiz and show them who the real deal is.

A large fan is mounted to the ceiling of a factory. It’s turned off and perfectly still. An engineer climbs up and places a ping pong ball on top of one of the blades. Then she turns on the fan remotely. The ball does not fall. Why not?

Escape the summer heat and challenge your engineering mind. Take the quiz and prove you're hotter than the summer sun.

A cylindrical tank with a hole at the bottom drains in exactly 60 minutes when full. How long will it take to drain if it's initially only half full?