1. How to Not Crack an Egg

Terry's battle of wits involves a mission to stack 100 lbs. on an egg without cracking, and an obstacle course for your memory.

2. How to Win by Finishing Last

Guy's battle of wits involves a helium-fueled race where it pays to be the slowest across the finish line, and a super-sized packing challenge.

4. How to Face the Music

The geniuses try to prove their smarts by decoding Guy's gauntlet of pattern puzzles.

5. How to Know When to Fold 'Em

A paper-airplane engineering challenge is issued.

6. How to Float Your Boat

The geniuses are challenged to build a self-propelling boat using simple materials.