1. A brief test or task that requires immediate response or completion in a short time frame
The quiz show presented quick challenges to the contestants.
O programa de perguntas apresentou desafios rápidos aos participantes.
2. In sports or gaming, a sudden or impromptu competitive task with limited duration
The coach set up a quick challenge for the team to improve their reflexes.
O treinador criou um desafio rápido para o time melhorar seus reflexos.