Clues

Throughout the race, clues indicate tasks that teams must complete, directions where teams must go or other pertinent information that guide teams along the race.

Roadblock
"A Roadblock is a task that only one team member may perform."

When teams encounter a roadblock, they must choose one member to perform an unknown task, based solely on a riddle and their surroundings. They are not allowed to switch team members at any point. The other team member may provide advice and support, but is not allowed to physically participate. Roadblocks are the only parts of the race where team members are separated from each other.

Memorable roadblocks include catapulting watermelons in England on Season 17, unrolling bales of hay in Sweden on Season 6, and walking in a full suit of armor in Poland in Season 5.