This channel is uploaded the videos that include kind of brain training, psychology and brain Science.By doing "spot the difference", "IQ test" and "Aha Experience",Activate your brain and keep your brain healthy.These videos are also for entertainment so feel free to try sort of riddle.If you like this channel, make sure to subscribe !!https://www.youtube.com/channel/UCRf9foceDDzKS9f0yu4i-GA?sub_confirmation=1