As the world is technologically evolving, speedy solutions show up at any time. Starting from 2019 onwards, a new member of corona viruses has appeared which is COVID-19. The world witnessed a dramatic spread of this virus that it has become a pandemic. The educational system was about to fall apart without the appearance of what is called online learning. In previous times, most educators relied on traditional learning; some did on blended learning, and a few on distance learning. All educators and institutions around the world cooperated to fix the issue of shutting down schools due to COVID-19 deadly cases. It happens that online learning has gained its popularity so quickly as being the most appropriate solution at the current time of COVID-19. However, no field is flawless. It is 2020’s world challenge in education that must be closely reviewed for further reference.