Backwards running 1km race on a track. The curves would be challenging.
Musical chairs whilst blindfolded
Downhill cheese rolling mountain race where runners chase the roll of cheese to the bottom of the mountain, i'm thinking maybe mount fuji 🗻 health and safety is less stringent in Asian countries
Bucking sheep for under 5s 🐑 toddlers have to hold the ram's horns and stay mounted on its back for as long as possible
Chess power slap. Normal chess except when you take an opponent's piece you are allowed one free slap as hard as you like to the opponent's face. No flinching. 1 minute per move including any recovery time from last slap.