Good, selective riddles of math iq | Training to improve mathematical thinking | increase IQ part 1

- This is a video for those of you who love math, want to practice and improve your mathematical thinking ability, and improve your IQ. The purpose of the video is to create interaction with the user. With each puzzle, there is a time for the user to think and solve, then see the answer, depending on the difficulty and ease of the puzzle, the time period is more or less. - Join as a member of this channel to enjoy the privileges: https://www.youtube.com/channel/UCTswjHwsgJqrRI0badf9blw/join ℗ Video copyright by Mr. Vu Giang #vugiangchannel #riddles #iq #math #mathiq